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Finding the Fourth Proportional to 18,059.10, 27,088.65 and 15,143.10

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Solution

The fourth proportional to 18,059.10, 27,088.65 and 15,143.10 is: 22,714.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,059.10 : 27,088.65 = 15,143.10 : x
  2. Step 2: Convert to fraction form
    18,059.10/27,088.65 = 15,143.10/x
  3. Step 3: Cross multiply
    18,059.10x = 27,088.65 × 15,143.10
  4. Step 4: Simplify right side
    18,059.10x = 410,206,135.82
  5. Step 5: Solve for x
    x = 410,206,135.82/18,059.10
  6. Step 6: Final answer
    x = 22,714.65

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Similar ratio
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1.5x scale

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.