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Finding the Fourth Proportional to 18,874.65, 26,047.32 and 10,377.15

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Solution

The fourth proportional to 18,874.65, 26,047.32 and 10,377.15 is: 14,320.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,874.65 : 26,047.32 = 10,377.15 : x
  2. Step 2: Convert to fraction form
    18,874.65/26,047.32 = 10,377.15/x
  3. Step 3: Cross multiply
    18,874.65x = 26,047.32 × 10,377.15
  4. Step 4: Simplify right side
    18,874.65x = 270,296,868.52
  5. Step 5: Solve for x
    x = 270,296,868.52/18,874.65
  6. Step 6: Final answer
    x = 14,320.63

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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.