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Finding the Fourth Proportional to 66,551.09, 99,767.14 and 24,421.40

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Solution

The fourth proportional to 66,551.09, 99,767.14 and 24,421.40 is: 36,610.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,551.09 : 99,767.14 = 24,421.40 : x
  2. Step 2: Convert to fraction form
    66,551.09/99,767.14 = 24,421.40/x
  3. Step 3: Cross multiply
    66,551.09x = 99,767.14 × 24,421.40
  4. Step 4: Simplify right side
    66,551.09x = 2,436,452,672.91
  5. Step 5: Solve for x
    x = 2,436,452,672.91/66,551.09
  6. Step 6: Final answer
    x = 36,610.26

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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.