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Finding the Fourth Proportional to 7,881,699.70, 11,822,549.55 and 5,729,363.65

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Solution

The fourth proportional to 7,881,699.70, 11,822,549.55 and 5,729,363.65 is: 8,594,045.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881,699.70 : 11,822,549.55 = 5,729,363.65 : x
  2. Step 2: Convert to fraction form
    7,881,699.70/11,822,549.55 = 5,729,363.65/x
  3. Step 3: Cross multiply
    7,881,699.70x = 11,822,549.55 × 5,729,363.65
  4. Step 4: Simplify right side
    7,881,699.70x = 67,735,685,642,093.87
  5. Step 5: Solve for x
    x = 67,735,685,642,093.87/7,881,699.70
  6. Step 6: Final answer
    x = 8,594,045.48

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Double scale
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Similar ratio
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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.