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Finding the Fourth Proportional to 70,684.77, 97,540.01 and 38,855.73

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Solution

The fourth proportional to 70,684.77, 97,540.01 and 38,855.73 is: 53,618.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,684.77 : 97,540.01 = 38,855.73 : x
  2. Step 2: Convert to fraction form
    70,684.77/97,540.01 = 38,855.73/x
  3. Step 3: Cross multiply
    70,684.77x = 97,540.01 × 38,855.73
  4. Step 4: Simplify right side
    70,684.77x = 3,789,988,098.48
  5. Step 5: Solve for x
    x = 3,789,988,098.48/70,684.77
  6. Step 6: Final answer
    x = 53,618.17

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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.