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Finding the Fourth Proportional to 70,691.10, 97,551.25 and 38,859.77

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Solution

The fourth proportional to 70,691.10, 97,551.25 and 38,859.77 is: 53,625.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,691.10 : 97,551.25 = 38,859.77 : x
  2. Step 2: Convert to fraction form
    70,691.10/97,551.25 = 38,859.77/x
  3. Step 3: Cross multiply
    70,691.10x = 97,551.25 × 38,859.77
  4. Step 4: Simplify right side
    70,691.10x = 3,790,819,138.21
  5. Step 5: Solve for x
    x = 3,790,819,138.21/70,691.10
  6. Step 6: Final answer
    x = 53,625.13

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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.