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Finding the Fourth Proportional to 12,042.76, 18,070.36 and 5,886.76

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Solution

The fourth proportional to 12,042.76, 18,070.36 and 5,886.76 is: 8,833.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,042.76 : 18,070.36 = 5,886.76 : x
  2. Step 2: Convert to fraction form
    12,042.76/18,070.36 = 5,886.76/x
  3. Step 3: Cross multiply
    12,042.76x = 18,070.36 × 5,886.76
  4. Step 4: Simplify right side
    12,042.76x = 106,375,872.43
  5. Step 5: Solve for x
    x = 106,375,872.43/12,042.76
  6. Step 6: Final answer
    x = 8,833.18

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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.