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Finding the Fourth Proportional to 29,422.84, 44,134.22 and 12,780.76

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Solution

The fourth proportional to 29,422.84, 44,134.22 and 12,780.76 is: 19,171.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,422.84 : 44,134.22 = 12,780.76 : x
  2. Step 2: Convert to fraction form
    29,422.84/44,134.22 = 12,780.76/x
  3. Step 3: Cross multiply
    29,422.84x = 44,134.22 × 12,780.76
  4. Step 4: Simplify right side
    29,422.84x = 564,068,873.61
  5. Step 5: Solve for x
    x = 564,068,873.61/29,422.84
  6. Step 6: Final answer
    x = 19,171.12

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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.