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Finding the Fourth Proportional to 25,644.92, 38,451.86 and 12,484.12

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Solution

The fourth proportional to 25,644.92, 38,451.86 and 12,484.12 is: 18,718.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,644.92 : 38,451.86 = 12,484.12 : x
  2. Step 2: Convert to fraction form
    25,644.92/38,451.86 = 12,484.12/x
  3. Step 3: Cross multiply
    25,644.92x = 38,451.86 × 12,484.12
  4. Step 4: Simplify right side
    25,644.92x = 480,037,634.46
  5. Step 5: Solve for x
    x = 480,037,634.46/25,644.92
  6. Step 6: Final answer
    x = 18,718.62

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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.