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Finding the Fourth Proportional to 18,326.68, 25,288.68 and 10,260.79

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Solution

The fourth proportional to 18,326.68, 25,288.68 and 10,260.79 is: 14,158.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,326.68 : 25,288.68 = 10,260.79 : x
  2. Step 2: Convert to fraction form
    18,326.68/25,288.68 = 10,260.79/x
  3. Step 3: Cross multiply
    18,326.68x = 25,288.68 × 10,260.79
  4. Step 4: Simplify right side
    18,326.68x = 259,481,810.11
  5. Step 5: Solve for x
    x = 259,481,810.11/18,326.68
  6. Step 6: Final answer
    x = 14,158.69

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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.