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Finding the Fourth Proportional to 18,752.11, 25,878.28 and 10,254.76

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Solution

The fourth proportional to 18,752.11, 25,878.28 and 10,254.76 is: 14,151.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,752.11 : 25,878.28 = 10,254.76 : x
  2. Step 2: Convert to fraction form
    18,752.11/25,878.28 = 10,254.76/x
  3. Step 3: Cross multiply
    18,752.11x = 25,878.28 × 10,254.76
  4. Step 4: Simplify right side
    18,752.11x = 265,375,550.61
  5. Step 5: Solve for x
    x = 265,375,550.61/18,752.11
  6. Step 6: Final answer
    x = 14,151.77

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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.