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Finding the Fourth Proportional to 18,295.80, 25,248.07 and 10,339.57

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Solution

The fourth proportional to 18,295.80, 25,248.07 and 10,339.57 is: 14,268.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,295.80 : 25,248.07 = 10,339.57 : x
  2. Step 2: Convert to fraction form
    18,295.80/25,248.07 = 10,339.57/x
  3. Step 3: Cross multiply
    18,295.80x = 25,248.07 × 10,339.57
  4. Step 4: Simplify right side
    18,295.80x = 261,054,187.13
  5. Step 5: Solve for x
    x = 261,054,187.13/18,295.80
  6. Step 6: Final answer
    x = 14,268.53

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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.