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Finding the Fourth Proportional to 28,576.68, 42,862.90 and 9,601.44

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Solution

The fourth proportional to 28,576.68, 42,862.90 and 9,601.44 is: 14,401.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,576.68 : 42,862.90 = 9,601.44 : x
  2. Step 2: Convert to fraction form
    28,576.68/42,862.90 = 9,601.44/x
  3. Step 3: Cross multiply
    28,576.68x = 42,862.90 × 9,601.44
  4. Step 4: Simplify right side
    28,576.68x = 411,545,562.58
  5. Step 5: Solve for x
    x = 411,545,562.58/28,576.68
  6. Step 6: Final answer
    x = 14,401.45

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1.5x scale

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.