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Finding the Fourth Proportional to 66,666.71, 100,000.17 and 27,223.83

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Solution

The fourth proportional to 66,666.71, 100,000.17 and 27,223.83 is: 40,835.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,666.71 : 100,000.17 = 27,223.83 : x
  2. Step 2: Convert to fraction form
    66,666.71/100,000.17 = 27,223.83/x
  3. Step 3: Cross multiply
    66,666.71x = 100,000.17 × 27,223.83
  4. Step 4: Simplify right side
    66,666.71x = 2,722,387,628.05
  5. Step 5: Solve for x
    x = 2,722,387,628.05/66,666.71
  6. Step 6: Final answer
    x = 40,835.79

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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.