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Finding the Fourth Proportional to 15,211.92, 22,828.05 and 5,351.16

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Solution

The fourth proportional to 15,211.92, 22,828.05 and 5,351.16 is: 8,030.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,211.92 : 22,828.05 = 5,351.16 : x
  2. Step 2: Convert to fraction form
    15,211.92/22,828.05 = 5,351.16/x
  3. Step 3: Cross multiply
    15,211.92x = 22,828.05 × 5,351.16
  4. Step 4: Simplify right side
    15,211.92x = 122,156,548.04
  5. Step 5: Solve for x
    x = 122,156,548.04/15,211.92
  6. Step 6: Final answer
    x = 8,030.32

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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.