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Finding the Fourth Proportional to 57,186.53, 78,944.52 and 38,098.11

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Solution

The fourth proportional to 57,186.53, 78,944.52 and 38,098.11 is: 52,593.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,186.53 : 78,944.52 = 38,098.11 : x
  2. Step 2: Convert to fraction form
    57,186.53/78,944.52 = 38,098.11/x
  3. Step 3: Cross multiply
    57,186.53x = 78,944.52 × 38,098.11
  4. Step 4: Simplify right side
    57,186.53x = 3,007,637,006.86
  5. Step 5: Solve for x
    x = 3,007,637,006.86/57,186.53
  6. Step 6: Final answer
    x = 52,593.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.