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Finding the Fourth Proportional to 53,251.92, 79,864.18 and 15,803.12

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Solution

The fourth proportional to 53,251.92, 79,864.18 and 15,803.12 is: 23,700.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,251.92 : 79,864.18 = 15,803.12 : x
  2. Step 2: Convert to fraction form
    53,251.92/79,864.18 = 15,803.12/x
  3. Step 3: Cross multiply
    53,251.92x = 79,864.18 × 15,803.12
  4. Step 4: Simplify right side
    53,251.92x = 1,262,103,380.39
  5. Step 5: Solve for x
    x = 1,262,103,380.39/53,251.92
  6. Step 6: Final answer
    x = 23,700.62

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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.