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Finding the Fourth Proportional to 66,063.72, 99,070.20 and 23,931.39

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Solution

The fourth proportional to 66,063.72, 99,070.20 and 23,931.39 is: 35,887.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,063.72 : 99,070.20 = 23,931.39 : x
  2. Step 2: Convert to fraction form
    66,063.72/99,070.20 = 23,931.39/x
  3. Step 3: Cross multiply
    66,063.72x = 99,070.20 × 23,931.39
  4. Step 4: Simplify right side
    66,063.72x = 2,370,887,593.58
  5. Step 5: Solve for x
    x = 2,370,887,593.58/66,063.72
  6. Step 6: Final answer
    x = 35,887.89

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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.