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Finding the Fourth Proportional to 64,575.25, 96,866.98 and 17,189.57

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Solution

The fourth proportional to 64,575.25, 96,866.98 and 17,189.57 is: 25,785.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,575.25 : 96,866.98 = 17,189.57 : x
  2. Step 2: Convert to fraction form
    64,575.25/96,866.98 = 17,189.57/x
  3. Step 3: Cross multiply
    64,575.25x = 96,866.98 × 17,189.57
  4. Step 4: Simplify right side
    64,575.25x = 1,665,101,932.59
  5. Step 5: Solve for x
    x = 1,665,101,932.59/64,575.25
  6. Step 6: Final answer
    x = 25,785.45

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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.