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Finding the Fourth Proportional to 18,073.58, 26,987.37 and 15,947.49

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Solution

The fourth proportional to 18,073.58, 26,987.37 and 15,947.49 is: 23,812.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,073.58 : 26,987.37 = 15,947.49 : x
  2. Step 2: Convert to fraction form
    18,073.58/26,987.37 = 15,947.49/x
  3. Step 3: Cross multiply
    18,073.58x = 26,987.37 × 15,947.49
  4. Step 4: Simplify right side
    18,073.58x = 430,380,813.20
  5. Step 5: Solve for x
    x = 430,380,813.20/18,073.58
  6. Step 6: Final answer
    x = 23,812.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.