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Finding the Fourth Proportional to 70,692.44, 97,557.90 and 38,862.68

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Solution

The fourth proportional to 70,692.44, 97,557.90 and 38,862.68 is: 53,631.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,692.44 : 97,557.90 = 38,862.68 : x
  2. Step 2: Convert to fraction form
    70,692.44/97,557.90 = 38,862.68/x
  3. Step 3: Cross multiply
    70,692.44x = 97,557.90 × 38,862.68
  4. Step 4: Simplify right side
    70,692.44x = 3,791,361,449.17
  5. Step 5: Solve for x
    x = 3,791,361,449.17/70,692.44
  6. Step 6: Final answer
    x = 53,631.78

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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.