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Finding the Fourth Proportional to 15,243.32, 22,864.92 and 5,383.16

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Solution

The fourth proportional to 15,243.32, 22,864.92 and 5,383.16 is: 8,074.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,243.32 : 22,864.92 = 5,383.16 : x
  2. Step 2: Convert to fraction form
    15,243.32/22,864.92 = 5,383.16/x
  3. Step 3: Cross multiply
    15,243.32x = 22,864.92 × 5,383.16
  4. Step 4: Simplify right side
    15,243.32x = 123,085,522.75
  5. Step 5: Solve for x
    x = 123,085,522.75/15,243.32
  6. Step 6: Final answer
    x = 8,074.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.