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Finding the Fourth Proportional to 29,423.84, 44,135.72 and 12,781.76

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Solution

The fourth proportional to 29,423.84, 44,135.72 and 12,781.76 is: 19,172.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,423.84 : 44,135.72 = 12,781.76 : x
  2. Step 2: Convert to fraction form
    29,423.84/44,135.72 = 12,781.76/x
  3. Step 3: Cross multiply
    29,423.84x = 44,135.72 × 12,781.76
  4. Step 4: Simplify right side
    29,423.84x = 564,132,180.47
  5. Step 5: Solve for x
    x = 564,132,180.47/29,423.84
  6. Step 6: Final answer
    x = 19,172.62

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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.