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Finding the Fourth Proportional to 83,491.78, 125,256.87 and 27,333.70

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Solution

The fourth proportional to 83,491.78, 125,256.87 and 27,333.70 is: 41,006.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,491.78 : 125,256.87 = 27,333.70 : x
  2. Step 2: Convert to fraction form
    83,491.78/125,256.87 = 27,333.70/x
  3. Step 3: Cross multiply
    83,491.78x = 125,256.87 × 27,333.70
  4. Step 4: Simplify right side
    83,491.78x = 3,423,733,707.52
  5. Step 5: Solve for x
    x = 3,423,733,707.52/83,491.78
  6. Step 6: Final answer
    x = 41,006.84

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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.