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Finding the Fourth Proportional to 15,499.20, 23,200.20 and 11,125.20

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Solution

The fourth proportional to 15,499.20, 23,200.20 and 11,125.20 is: 16,652.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,499.20 : 23,200.20 = 11,125.20 : x
  2. Step 2: Convert to fraction form
    15,499.20/23,200.20 = 11,125.20/x
  3. Step 3: Cross multiply
    15,499.20x = 23,200.20 × 11,125.20
  4. Step 4: Simplify right side
    15,499.20x = 258,106,865.04
  5. Step 5: Solve for x
    x = 258,106,865.04/15,499.20
  6. Step 6: Final answer
    x = 16,652.92

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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.