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Finding the Fourth Proportional to 60,692.84, 83,708.64 and 39,478.88

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Solution

The fourth proportional to 60,692.84, 83,708.64 and 39,478.88 is: 54,449.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,692.84 : 83,708.64 = 39,478.88 : x
  2. Step 2: Convert to fraction form
    60,692.84/83,708.64 = 39,478.88/x
  3. Step 3: Cross multiply
    60,692.84x = 83,708.64 × 39,478.88
  4. Step 4: Simplify right side
    60,692.84x = 3,304,723,353.52
  5. Step 5: Solve for x
    x = 3,304,723,353.52/60,692.84
  6. Step 6: Final answer
    x = 54,449.97

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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.