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Finding the Fourth Proportional to 7,356.80, 11,003.20 and 6,582.40

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Solution

The fourth proportional to 7,356.80, 11,003.20 and 6,582.40 is: 9,844.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,356.80 : 11,003.20 = 6,582.40 : x
  2. Step 2: Convert to fraction form
    7,356.80/11,003.20 = 6,582.40/x
  3. Step 3: Cross multiply
    7,356.80x = 11,003.20 × 6,582.40
  4. Step 4: Simplify right side
    7,356.80x = 72,427,463.68
  5. Step 5: Solve for x
    x = 72,427,463.68/7,356.80
  6. Step 6: Final answer
    x = 9,844.97

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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.