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Finding the Fourth Proportional to 66,633.52, 99,950.28 and 27,209.20

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Solution

The fourth proportional to 66,633.52, 99,950.28 and 27,209.20 is: 40,813.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,633.52 : 99,950.28 = 27,209.20 : x
  2. Step 2: Convert to fraction form
    66,633.52/99,950.28 = 27,209.20/x
  3. Step 3: Cross multiply
    66,633.52x = 99,950.28 × 27,209.20
  4. Step 4: Simplify right side
    66,633.52x = 2,719,567,158.58
  5. Step 5: Solve for x
    x = 2,719,567,158.58/66,633.52
  6. Step 6: Final answer
    x = 40,813.80

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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.