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Finding the Fourth Proportional to 64,861.78, 97,284.62 and 17,480.58

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Solution

The fourth proportional to 64,861.78, 97,284.62 and 17,480.58 is: 26,218.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,861.78 : 97,284.62 = 17,480.58 : x
  2. Step 2: Convert to fraction form
    64,861.78/97,284.62 = 17,480.58/x
  3. Step 3: Cross multiply
    64,861.78x = 97,284.62 × 17,480.58
  4. Step 4: Simplify right side
    64,861.78x = 1,700,591,582.68
  5. Step 5: Solve for x
    x = 1,700,591,582.68/64,861.78
  6. Step 6: Final answer
    x = 26,218.70

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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.