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Finding the Fourth Proportional to 28,672.80, 39,562.02 and 16,096.74

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Solution

The fourth proportional to 28,672.80, 39,562.02 and 16,096.74 is: 22,209.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,672.80 : 39,562.02 = 16,096.74 : x
  2. Step 2: Convert to fraction form
    28,672.80/39,562.02 = 16,096.74/x
  3. Step 3: Cross multiply
    28,672.80x = 39,562.02 × 16,096.74
  4. Step 4: Simplify right side
    28,672.80x = 636,819,549.81
  5. Step 5: Solve for x
    x = 636,819,549.81/28,672.80
  6. Step 6: Final answer
    x = 22,209.88

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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.