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Finding the Fourth Proportional to 66,663.68, 100,023.12 and 29,204.40

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Solution

The fourth proportional to 66,663.68, 100,023.12 and 29,204.40 is: 43,818.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,663.68 : 100,023.12 = 29,204.40 : x
  2. Step 2: Convert to fraction form
    66,663.68/100,023.12 = 29,204.40/x
  3. Step 3: Cross multiply
    66,663.68x = 100,023.12 × 29,204.40
  4. Step 4: Simplify right side
    66,663.68x = 2,921,115,205.73
  5. Step 5: Solve for x
    x = 2,921,115,205.73/66,663.68
  6. Step 6: Final answer
    x = 43,818.69

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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.