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Finding the Fourth Proportional to 66,859.95, 92,253.10 and 39,624.04

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Solution

The fourth proportional to 66,859.95, 92,253.10 and 39,624.04 is: 54,673.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,859.95 : 92,253.10 = 39,624.04 : x
  2. Step 2: Convert to fraction form
    66,859.95/92,253.10 = 39,624.04/x
  3. Step 3: Cross multiply
    66,859.95x = 92,253.10 × 39,624.04
  4. Step 4: Simplify right side
    66,859.95x = 3,655,439,865.14
  5. Step 5: Solve for x
    x = 3,655,439,865.14/66,859.95
  6. Step 6: Final answer
    x = 54,673.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.