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Finding the Fourth Proportional to 11,250.80, 16,876.20 and 10,482.80

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Solution

The fourth proportional to 11,250.80, 16,876.20 and 10,482.80 is: 15,724.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,250.80 : 16,876.20 = 10,482.80 : x
  2. Step 2: Convert to fraction form
    11,250.80/16,876.20 = 10,482.80/x
  3. Step 3: Cross multiply
    11,250.80x = 16,876.20 × 10,482.80
  4. Step 4: Simplify right side
    11,250.80x = 176,909,829.36
  5. Step 5: Solve for x
    x = 176,909,829.36/11,250.80
  6. Step 6: Final answer
    x = 15,724.20

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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.