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Finding the Fourth Proportional to 40,878.66, 61,305.03 and 17,498.82

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Solution

The fourth proportional to 40,878.66, 61,305.03 and 17,498.82 is: 26,242.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,878.66 : 61,305.03 = 17,498.82 : x
  2. Step 2: Convert to fraction form
    40,878.66/61,305.03 = 17,498.82/x
  3. Step 3: Cross multiply
    40,878.66x = 61,305.03 × 17,498.82
  4. Step 4: Simplify right side
    40,878.66x = 1,072,765,685.06
  5. Step 5: Solve for x
    x = 1,072,765,685.06/40,878.66
  6. Step 6: Final answer
    x = 26,242.68

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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.