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Finding the Fourth Proportional to 7,775,998.65, 11,663,997.98 and 7,029,502.65

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Solution

The fourth proportional to 7,775,998.65, 11,663,997.98 and 7,029,502.65 is: 10,544,253.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,775,998.65 : 11,663,997.98 = 7,029,502.65 : x
  2. Step 2: Convert to fraction form
    7,775,998.65/11,663,997.98 = 7,029,502.65/x
  3. Step 3: Cross multiply
    7,775,998.65x = 11,663,997.98 × 7,029,502.65
  4. Step 4: Simplify right side
    7,775,998.65x = 81,992,104,674,857.14
  5. Step 5: Solve for x
    x = 81,992,104,674,857.14/7,775,998.65
  6. Step 6: Final answer
    x = 10,544,253.98

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.