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Finding the Fourth Proportional to 7,487.68, 11,233.68 and 3,104.32

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Solution

The fourth proportional to 7,487.68, 11,233.68 and 3,104.32 is: 4,657.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,487.68 : 11,233.68 = 3,104.32 : x
  2. Step 2: Convert to fraction form
    7,487.68/11,233.68 = 3,104.32/x
  3. Step 3: Cross multiply
    7,487.68x = 11,233.68 × 3,104.32
  4. Step 4: Simplify right side
    7,487.68x = 34,872,937.50
  5. Step 5: Solve for x
    x = 34,872,937.50/7,487.68
  6. Step 6: Final answer
    x = 4,657.38

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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.