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Finding the Fourth Proportional to 18,252.19, 25,187.97 and 9,868.69

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Solution

The fourth proportional to 18,252.19, 25,187.97 and 9,868.69 is: 13,618.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,252.19 : 25,187.97 = 9,868.69 : x
  2. Step 2: Convert to fraction form
    18,252.19/25,187.97 = 9,868.69/x
  3. Step 3: Cross multiply
    18,252.19x = 25,187.97 × 9,868.69
  4. Step 4: Simplify right side
    18,252.19x = 248,572,267.66
  5. Step 5: Solve for x
    x = 248,572,267.66/18,252.19
  6. Step 6: Final answer
    x = 13,618.76

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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.