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Finding the Fourth Proportional to 70,760.39, 97,652.28 and 38,931.33

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Solution

The fourth proportional to 70,760.39, 97,652.28 and 38,931.33 is: 53,726.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,760.39 : 97,652.28 = 38,931.33 : x
  2. Step 2: Convert to fraction form
    70,760.39/97,652.28 = 38,931.33/x
  3. Step 3: Cross multiply
    70,760.39x = 97,652.28 × 38,931.33
  4. Step 4: Simplify right side
    70,760.39x = 3,801,733,650.12
  5. Step 5: Solve for x
    x = 3,801,733,650.12/70,760.39
  6. Step 6: Final answer
    x = 53,726.86

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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.