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Finding the Fourth Proportional to 66,576.60, 99,828.45 and 27,089.10

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Solution

The fourth proportional to 66,576.60, 99,828.45 and 27,089.10 is: 40,618.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,576.60 : 99,828.45 = 27,089.10 : x
  2. Step 2: Convert to fraction form
    66,576.60/99,828.45 = 27,089.10/x
  3. Step 3: Cross multiply
    66,576.60x = 99,828.45 × 27,089.10
  4. Step 4: Simplify right side
    66,576.60x = 2,704,262,864.90
  5. Step 5: Solve for x
    x = 2,704,262,864.90/66,576.60
  6. Step 6: Final answer
    x = 40,618.82

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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.