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Finding the Fourth Proportional to 15,351.92, 22,908.14 and 13,697.09

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Solution

The fourth proportional to 15,351.92, 22,908.14 and 13,697.09 is: 20,438.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,351.92 : 22,908.14 = 13,697.09 : x
  2. Step 2: Convert to fraction form
    15,351.92/22,908.14 = 13,697.09/x
  3. Step 3: Cross multiply
    15,351.92x = 22,908.14 × 13,697.09
  4. Step 4: Simplify right side
    15,351.92x = 313,774,775.01
  5. Step 5: Solve for x
    x = 313,774,775.01/15,351.92
  6. Step 6: Final answer
    x = 20,438.80

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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.