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Finding the Fourth Proportional to 66,624.34, 99,911.40 and 27,159.52

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Solution

The fourth proportional to 66,624.34, 99,911.40 and 27,159.52 is: 40,729.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,624.34 : 99,911.40 = 27,159.52 : x
  2. Step 2: Convert to fraction form
    66,624.34/99,911.40 = 27,159.52/x
  3. Step 3: Cross multiply
    66,624.34x = 99,911.40 × 27,159.52
  4. Step 4: Simplify right side
    66,624.34x = 2,713,545,666.53
  5. Step 5: Solve for x
    x = 2,713,545,666.53/66,624.34
  6. Step 6: Final answer
    x = 40,729.04

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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.