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Finding the Fourth Proportional to 70,540.92, 97,349.28 and 38,710.96

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Solution

The fourth proportional to 70,540.92, 97,349.28 and 38,710.96 is: 53,422.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,540.92 : 97,349.28 = 38,710.96 : x
  2. Step 2: Convert to fraction form
    70,540.92/97,349.28 = 38,710.96/x
  3. Step 3: Cross multiply
    70,540.92x = 97,349.28 × 38,710.96
  4. Step 4: Simplify right side
    70,540.92x = 3,768,483,695.57
  5. Step 5: Solve for x
    x = 3,768,483,695.57/70,540.92
  6. Step 6: Final answer
    x = 53,422.66

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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.