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Finding the Fourth Proportional to 64,459.44, 88,959.38 and 35,781.79

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Solution

The fourth proportional to 64,459.44, 88,959.38 and 35,781.79 is: 49,381.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,459.44 : 88,959.38 = 35,781.79 : x
  2. Step 2: Convert to fraction form
    64,459.44/88,959.38 = 35,781.79/x
  3. Step 3: Cross multiply
    64,459.44x = 88,959.38 × 35,781.79
  4. Step 4: Simplify right side
    64,459.44x = 3,183,125,853.69
  5. Step 5: Solve for x
    x = 3,183,125,853.69/64,459.44
  6. Step 6: Final answer
    x = 49,381.84

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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.