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Finding the Fourth Proportional to 18,874.10, 26,046.19 and 10,376.76

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Solution

The fourth proportional to 18,874.10, 26,046.19 and 10,376.76 is: 14,319.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,874.10 : 26,046.19 = 10,376.76 : x
  2. Step 2: Convert to fraction form
    18,874.10/26,046.19 = 10,376.76/x
  3. Step 3: Cross multiply
    18,874.10x = 26,046.19 × 10,376.76
  4. Step 4: Simplify right side
    18,874.10x = 270,275,036.60
  5. Step 5: Solve for x
    x = 270,275,036.60/18,874.10
  6. Step 6: Final answer
    x = 14,319.89

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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.