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Finding the Fourth Proportional to 76,503.92, 114,543.05 and 38,983.10

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Solution

The fourth proportional to 76,503.92, 114,543.05 and 38,983.10 is: 58,366.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,503.92 : 114,543.05 = 38,983.10 : x
  2. Step 2: Convert to fraction form
    76,503.92/114,543.05 = 38,983.10/x
  3. Step 3: Cross multiply
    76,503.92x = 114,543.05 × 38,983.10
  4. Step 4: Simplify right side
    76,503.92x = 4,465,242,404.82
  5. Step 5: Solve for x
    x = 4,465,242,404.82/76,503.92
  6. Step 6: Final answer
    x = 58,366.19

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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.