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Finding the Fourth Proportional to 7,397.92, 11,100.12 and 3,505.12

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Solution

The fourth proportional to 7,397.92, 11,100.12 and 3,505.12 is: 5,259.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,397.92 : 11,100.12 = 3,505.12 : x
  2. Step 2: Convert to fraction form
    7,397.92/11,100.12 = 3,505.12/x
  3. Step 3: Cross multiply
    7,397.92x = 11,100.12 × 3,505.12
  4. Step 4: Simplify right side
    7,397.92x = 38,907,252.61
  5. Step 5: Solve for x
    x = 38,907,252.61/7,397.92
  6. Step 6: Final answer
    x = 5,259.22

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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.