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Finding the Fourth Proportional to 29,149.80, 43,724.70 and 10,679.40

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Solution

The fourth proportional to 29,149.80, 43,724.70 and 10,679.40 is: 16,019.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,149.80 : 43,724.70 = 10,679.40 : x
  2. Step 2: Convert to fraction form
    29,149.80/43,724.70 = 10,679.40/x
  3. Step 3: Cross multiply
    29,149.80x = 43,724.70 × 10,679.40
  4. Step 4: Simplify right side
    29,149.80x = 466,953,561.18
  5. Step 5: Solve for x
    x = 466,953,561.18/29,149.80
  6. Step 6: Final answer
    x = 16,019.10

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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.