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Finding the Fourth Proportional to 18,352.32, 25,318.08 and 10,896

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Solution

The fourth proportional to 18,352.32, 25,318.08 and 10,896 is: 15,031.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,352.32 : 25,318.08 = 10,896 : x
  2. Step 2: Convert to fraction form
    18,352.32/25,318.08 = 10,896/x
  3. Step 3: Cross multiply
    18,352.32x = 25,318.08 × 10,896
  4. Step 4: Simplify right side
    18,352.32x = 275,865,799.68
  5. Step 5: Solve for x
    x = 275,865,799.68/18,352.32
  6. Step 6: Final answer
    x = 15,031.66

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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.