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Finding the Fourth Proportional to 26,891.64, 40,342.14 and 10,253.16

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Solution

The fourth proportional to 26,891.64, 40,342.14 and 10,253.16 is: 15,381.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,891.64 : 40,342.14 = 10,253.16 : x
  2. Step 2: Convert to fraction form
    26,891.64/40,342.14 = 10,253.16/x
  3. Step 3: Cross multiply
    26,891.64x = 40,342.14 × 10,253.16
  4. Step 4: Simplify right side
    26,891.64x = 413,634,416.16
  5. Step 5: Solve for x
    x = 413,634,416.16/26,891.64
  6. Step 6: Final answer
    x = 15,381.52

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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.