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Finding the Fourth Proportional to 66,966.26, 100,451.89 and 17,047.52

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Solution

The fourth proportional to 66,966.26, 100,451.89 and 17,047.52 is: 25,571.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,966.26 : 100,451.89 = 17,047.52 : x
  2. Step 2: Convert to fraction form
    66,966.26/100,451.89 = 17,047.52/x
  3. Step 3: Cross multiply
    66,966.26x = 100,451.89 × 17,047.52
  4. Step 4: Simplify right side
    66,966.26x = 1,712,455,603.81
  5. Step 5: Solve for x
    x = 1,712,455,603.81/66,966.26
  6. Step 6: Final answer
    x = 25,571.92

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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.