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Finding the Fourth Proportional to 7,244.80, 10,880.40 and 6,337.60

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Solution

The fourth proportional to 7,244.80, 10,880.40 and 6,337.60 is: 9,517.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,244.80 : 10,880.40 = 6,337.60 : x
  2. Step 2: Convert to fraction form
    7,244.80/10,880.40 = 6,337.60/x
  3. Step 3: Cross multiply
    7,244.80x = 10,880.40 × 6,337.60
  4. Step 4: Simplify right side
    7,244.80x = 68,955,623.04
  5. Step 5: Solve for x
    x = 68,955,623.04/7,244.80
  6. Step 6: Final answer
    x = 9,517.95

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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.