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Finding the Fourth Proportional to 66,515.84, 99,687.12 and 27,026.79

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Solution

The fourth proportional to 66,515.84, 99,687.12 and 27,026.79 is: 40,504.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,515.84 : 99,687.12 = 27,026.79 : x
  2. Step 2: Convert to fraction form
    66,515.84/99,687.12 = 27,026.79/x
  3. Step 3: Cross multiply
    66,515.84x = 99,687.12 × 27,026.79
  4. Step 4: Simplify right side
    66,515.84x = 2,694,222,224.38
  5. Step 5: Solve for x
    x = 2,694,222,224.38/66,515.84
  6. Step 6: Final answer
    x = 40,504.97

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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.