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Finding the Fourth Proportional to 40,339.92, 60,509.70 and 15,374.28

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Solution

The fourth proportional to 40,339.92, 60,509.70 and 15,374.28 is: 23,061.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,339.92 : 60,509.70 = 15,374.28 : x
  2. Step 2: Convert to fraction form
    40,339.92/60,509.70 = 15,374.28/x
  3. Step 3: Cross multiply
    40,339.92x = 60,509.70 × 15,374.28
  4. Step 4: Simplify right side
    40,339.92x = 930,293,070.52
  5. Step 5: Solve for x
    x = 930,293,070.52/40,339.92
  6. Step 6: Final answer
    x = 23,061.35

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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.