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Finding the Fourth Proportional to 70,691.94, 97,553.57 and 38,860.16

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Solution

The fourth proportional to 70,691.94, 97,553.57 and 38,860.16 is: 53,626.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,691.94 : 97,553.57 = 38,860.16 : x
  2. Step 2: Convert to fraction form
    70,691.94/97,553.57 = 38,860.16/x
  3. Step 3: Cross multiply
    70,691.94x = 97,553.57 × 38,860.16
  4. Step 4: Simplify right side
    70,691.94x = 3,790,946,656.70
  5. Step 5: Solve for x
    x = 3,790,946,656.70/70,691.94
  6. Step 6: Final answer
    x = 53,626.29

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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.