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Finding the Fourth Proportional to 60,432.80, 90,692.40 and 25,397.60

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Solution

The fourth proportional to 60,432.80, 90,692.40 and 25,397.60 is: 38,114.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,432.80 : 90,692.40 = 25,397.60 : x
  2. Step 2: Convert to fraction form
    60,432.80/90,692.40 = 25,397.60/x
  3. Step 3: Cross multiply
    60,432.80x = 90,692.40 × 25,397.60
  4. Step 4: Simplify right side
    60,432.80x = 2,303,369,298.24
  5. Step 5: Solve for x
    x = 2,303,369,298.24/60,432.80
  6. Step 6: Final answer
    x = 38,114.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.