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Finding the Fourth Proportional to 28,000.89, 38,641.20 and 16,063.71

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Solution

The fourth proportional to 28,000.89, 38,641.20 and 16,063.71 is: 22,167.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,000.89 : 38,641.20 = 16,063.71 : x
  2. Step 2: Convert to fraction form
    28,000.89/38,641.20 = 16,063.71/x
  3. Step 3: Cross multiply
    28,000.89x = 38,641.20 × 16,063.71
  4. Step 4: Simplify right side
    28,000.89x = 620,721,030.85
  5. Step 5: Solve for x
    x = 620,721,030.85/28,000.89
  6. Step 6: Final answer
    x = 22,167.90

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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.