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Finding the Fourth Proportional to 66,577.80, 99,818.10 and 27,114.60

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Solution

The fourth proportional to 66,577.80, 99,818.10 and 27,114.60 is: 40,652.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,577.80 : 99,818.10 = 27,114.60 : x
  2. Step 2: Convert to fraction form
    66,577.80/99,818.10 = 27,114.60/x
  3. Step 3: Cross multiply
    66,577.80x = 99,818.10 × 27,114.60
  4. Step 4: Simplify right side
    66,577.80x = 2,706,527,854.26
  5. Step 5: Solve for x
    x = 2,706,527,854.26/66,577.80
  6. Step 6: Final answer
    x = 40,652.11

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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.