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Finding the Fourth Proportional to 66,461.04, 99,691.56 and 27,008.91

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Solution

The fourth proportional to 66,461.04, 99,691.56 and 27,008.91 is: 40,513.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,461.04 : 99,691.56 = 27,008.91 : x
  2. Step 2: Convert to fraction form
    66,461.04/99,691.56 = 27,008.91/x
  3. Step 3: Cross multiply
    66,461.04x = 99,691.56 × 27,008.91
  4. Step 4: Simplify right side
    66,461.04x = 2,692,560,371.80
  5. Step 5: Solve for x
    x = 2,692,560,371.80/66,461.04
  6. Step 6: Final answer
    x = 40,513.37

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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.