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Finding the Fourth Proportional to 70,902.49, 97,844.17 and 38,637.39

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Solution

The fourth proportional to 70,902.49, 97,844.17 and 38,637.39 is: 53,318.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,902.49 : 97,844.17 = 38,637.39 : x
  2. Step 2: Convert to fraction form
    70,902.49/97,844.17 = 38,637.39/x
  3. Step 3: Cross multiply
    70,902.49x = 97,844.17 × 38,637.39
  4. Step 4: Simplify right side
    70,902.49x = 3,780,442,866.30
  5. Step 5: Solve for x
    x = 3,780,442,866.30/70,902.49
  6. Step 6: Final answer
    x = 53,318.91

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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.