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Finding the Fourth Proportional to 21,592.92, 29,797.08 and 12,160.88

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Solution

The fourth proportional to 21,592.92, 29,797.08 and 12,160.88 is: 16,781.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,592.92 : 29,797.08 = 12,160.88 : x
  2. Step 2: Convert to fraction form
    21,592.92/29,797.08 = 12,160.88/x
  3. Step 3: Cross multiply
    21,592.92x = 29,797.08 × 12,160.88
  4. Step 4: Simplify right side
    21,592.92x = 362,358,565.25
  5. Step 5: Solve for x
    x = 362,358,565.25/21,592.92
  6. Step 6: Final answer
    x = 16,781.36

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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.