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Finding the Fourth Proportional to 29,400.78, 44,079.30 and 12,757.71

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Solution

The fourth proportional to 29,400.78, 44,079.30 and 12,757.71 is: 19,127.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,400.78 : 44,079.30 = 12,757.71 : x
  2. Step 2: Convert to fraction form
    29,400.78/44,079.30 = 12,757.71/x
  3. Step 3: Cross multiply
    29,400.78x = 44,079.30 × 12,757.71
  4. Step 4: Simplify right side
    29,400.78x = 562,350,926.40
  5. Step 5: Solve for x
    x = 562,350,926.40/29,400.78
  6. Step 6: Final answer
    x = 19,127.08

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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.