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Finding the Fourth Proportional to 15,102.78, 22,464.02 and 15,052.20

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Solution

The fourth proportional to 15,102.78, 22,464.02 and 15,052.20 is: 22,388.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,102.78 : 22,464.02 = 15,052.20 : x
  2. Step 2: Convert to fraction form
    15,102.78/22,464.02 = 15,052.20/x
  3. Step 3: Cross multiply
    15,102.78x = 22,464.02 × 15,052.20
  4. Step 4: Simplify right side
    15,102.78x = 338,132,921.84
  5. Step 5: Solve for x
    x = 338,132,921.84/15,102.78
  6. Step 6: Final answer
    x = 22,388.79

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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.