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Finding the Fourth Proportional to 64,590.61, 96,885.88 and 17,843.48

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Solution

The fourth proportional to 64,590.61, 96,885.88 and 17,843.48 is: 26,765.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,590.61 : 96,885.88 = 17,843.48 : x
  2. Step 2: Convert to fraction form
    64,590.61/96,885.88 = 17,843.48/x
  3. Step 3: Cross multiply
    64,590.61x = 96,885.88 × 17,843.48
  4. Step 4: Simplify right side
    64,590.61x = 1,728,781,262.06
  5. Step 5: Solve for x
    x = 1,728,781,262.06/64,590.61
  6. Step 6: Final answer
    x = 26,765.21

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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.