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Finding the Fourth Proportional to 70,577.64, 97,398.36 and 38,747.88

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Solution

The fourth proportional to 70,577.64, 97,398.36 and 38,747.88 is: 53,472.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,577.64 : 97,398.36 = 38,747.88 : x
  2. Step 2: Convert to fraction form
    70,577.64/97,398.36 = 38,747.88/x
  3. Step 3: Cross multiply
    70,577.64x = 97,398.36 × 38,747.88
  4. Step 4: Simplify right side
    70,577.64x = 3,773,979,965.48
  5. Step 5: Solve for x
    x = 3,773,979,965.48/70,577.64
  6. Step 6: Final answer
    x = 53,472.74

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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.