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Finding the Fourth Proportional to 18,751.80, 25,877.51 and 10,253.96

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Solution

The fourth proportional to 18,751.80, 25,877.51 and 10,253.96 is: 14,150.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,751.80 : 25,877.51 = 10,253.96 : x
  2. Step 2: Convert to fraction form
    18,751.80/25,877.51 = 10,253.96/x
  3. Step 3: Cross multiply
    18,751.80x = 25,877.51 × 10,253.96
  4. Step 4: Simplify right side
    18,751.80x = 265,346,952.44
  5. Step 5: Solve for x
    x = 265,346,952.44/18,751.80
  6. Step 6: Final answer
    x = 14,150.48

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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.