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Finding the Fourth Proportional to 43,864.60, 65,760.02 and 17,555

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Solution

The fourth proportional to 43,864.60, 65,760.02 and 17,555 is: 26,317.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,864.60 : 65,760.02 = 17,555 : x
  2. Step 2: Convert to fraction form
    43,864.60/65,760.02 = 17,555/x
  3. Step 3: Cross multiply
    43,864.60x = 65,760.02 × 17,555
  4. Step 4: Simplify right side
    43,864.60x = 1,154,417,151.10
  5. Step 5: Solve for x
    x = 1,154,417,151.10/43,864.60
  6. Step 6: Final answer
    x = 26,317.74

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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.