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Finding the Fourth Proportional to 18,652.31, 25,732.10 and 10,692.71

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Solution

The fourth proportional to 18,652.31, 25,732.10 and 10,692.71 is: 14,751.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,652.31 : 25,732.10 = 10,692.71 : x
  2. Step 2: Convert to fraction form
    18,652.31/25,732.10 = 10,692.71/x
  3. Step 3: Cross multiply
    18,652.31x = 25,732.10 × 10,692.71
  4. Step 4: Simplify right side
    18,652.31x = 275,145,829.53
  5. Step 5: Solve for x
    x = 275,145,829.53/18,652.31
  6. Step 6: Final answer
    x = 14,751.30

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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.