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Finding the Fourth Proportional to 7,448.13, 11,156.16 and 7,011.93

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Solution

The fourth proportional to 7,448.13, 11,156.16 and 7,011.93 is: 10,502.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,448.13 : 11,156.16 = 7,011.93 : x
  2. Step 2: Convert to fraction form
    7,448.13/11,156.16 = 7,011.93/x
  3. Step 3: Cross multiply
    7,448.13x = 11,156.16 × 7,011.93
  4. Step 4: Simplify right side
    7,448.13x = 78,226,212.99
  5. Step 5: Solve for x
    x = 78,226,212.99/7,448.13
  6. Step 6: Final answer
    x = 10,502.80

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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.