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Finding the Fourth Proportional to 17,871.70, 26,781.90 and 10,064.02

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Solution

The fourth proportional to 17,871.70, 26,781.90 and 10,064.02 is: 15,081.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,871.70 : 26,781.90 = 10,064.02 : x
  2. Step 2: Convert to fraction form
    17,871.70/26,781.90 = 10,064.02/x
  3. Step 3: Cross multiply
    17,871.70x = 26,781.90 × 10,064.02
  4. Step 4: Simplify right side
    17,871.70x = 269,533,577.24
  5. Step 5: Solve for x
    x = 269,533,577.24/17,871.70
  6. Step 6: Final answer
    x = 15,081.59

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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.