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Finding the Fourth Proportional to 53,685.16, 80,500.20 and 28,398.32

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Solution

The fourth proportional to 53,685.16, 80,500.20 and 28,398.32 is: 42,582.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,685.16 : 80,500.20 = 28,398.32 : x
  2. Step 2: Convert to fraction form
    53,685.16/80,500.20 = 28,398.32/x
  3. Step 3: Cross multiply
    53,685.16x = 80,500.20 × 28,398.32
  4. Step 4: Simplify right side
    53,685.16x = 2,286,070,640.91
  5. Step 5: Solve for x
    x = 2,286,070,640.91/53,685.16
  6. Step 6: Final answer
    x = 42,582.92

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.