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Finding the Fourth Proportional to 15,028.80, 22,543.20 and 10,651.20

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Solution

The fourth proportional to 15,028.80, 22,543.20 and 10,651.20 is: 15,976.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,028.80 : 22,543.20 = 10,651.20 : x
  2. Step 2: Convert to fraction form
    15,028.80/22,543.20 = 10,651.20/x
  3. Step 3: Cross multiply
    15,028.80x = 22,543.20 × 10,651.20
  4. Step 4: Simplify right side
    15,028.80x = 240,112,131.84
  5. Step 5: Solve for x
    x = 240,112,131.84/15,028.80
  6. Step 6: Final answer
    x = 15,976.80

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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.