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Finding the Fourth Proportional to 64,614.67, 96,911.06 and 17,856.61

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Solution

The fourth proportional to 64,614.67, 96,911.06 and 17,856.61 is: 26,781.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,614.67 : 96,911.06 = 17,856.61 : x
  2. Step 2: Convert to fraction form
    64,614.67/96,911.06 = 17,856.61/x
  3. Step 3: Cross multiply
    64,614.67x = 96,911.06 × 17,856.61
  4. Step 4: Simplify right side
    64,614.67x = 1,730,502,805.47
  5. Step 5: Solve for x
    x = 1,730,502,805.47/64,614.67
  6. Step 6: Final answer
    x = 26,781.89

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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.