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Finding the Fourth Proportional to 18,849.17, 26,008.90 and 10,889.87

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Solution

The fourth proportional to 18,849.17, 26,008.90 and 10,889.87 is: 15,026.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,849.17 : 26,008.90 = 10,889.87 : x
  2. Step 2: Convert to fraction form
    18,849.17/26,008.90 = 10,889.87/x
  3. Step 3: Cross multiply
    18,849.17x = 26,008.90 × 10,889.87
  4. Step 4: Simplify right side
    18,849.17x = 283,233,382.57
  5. Step 5: Solve for x
    x = 283,233,382.57/18,849.17
  6. Step 6: Final answer
    x = 15,026.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.