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Finding the Fourth Proportional to 7,550.32, 11,248.94 and 7,178.54

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Solution

The fourth proportional to 7,550.32, 11,248.94 and 7,178.54 is: 10,695.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,550.32 : 11,248.94 = 7,178.54 : x
  2. Step 2: Convert to fraction form
    7,550.32/11,248.94 = 7,178.54/x
  3. Step 3: Cross multiply
    7,550.32x = 11,248.94 × 7,178.54
  4. Step 4: Simplify right side
    7,550.32x = 80,750,965.75
  5. Step 5: Solve for x
    x = 80,750,965.75/7,550.32
  6. Step 6: Final answer
    x = 10,695.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.