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Finding the Fourth Proportional to 11,246.60, 16,869.90 and 7,560.20

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Solution

The fourth proportional to 11,246.60, 16,869.90 and 7,560.20 is: 11,340.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,246.60 : 16,869.90 = 7,560.20 : x
  2. Step 2: Convert to fraction form
    11,246.60/16,869.90 = 7,560.20/x
  3. Step 3: Cross multiply
    11,246.60x = 16,869.90 × 7,560.20
  4. Step 4: Simplify right side
    11,246.60x = 127,539,817.98
  5. Step 5: Solve for x
    x = 127,539,817.98/11,246.60
  6. Step 6: Final answer
    x = 11,340.30

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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.