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Finding the Fourth Proportional to 28,888.92, 39,873.96 and 16,320.96

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Solution

The fourth proportional to 28,888.92, 39,873.96 and 16,320.96 is: 22,527.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,888.92 : 39,873.96 = 16,320.96 : x
  2. Step 2: Convert to fraction form
    28,888.92/39,873.96 = 16,320.96/x
  3. Step 3: Cross multiply
    28,888.92x = 39,873.96 × 16,320.96
  4. Step 4: Simplify right side
    28,888.92x = 650,781,306.20
  5. Step 5: Solve for x
    x = 650,781,306.20/28,888.92
  6. Step 6: Final answer
    x = 22,527.02

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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.