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Finding the Fourth Proportional to 7,324.30, 10,978.57 and 3,166.28

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Solution

The fourth proportional to 7,324.30, 10,978.57 and 3,166.28 is: 4,746.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,324.30 : 10,978.57 = 3,166.28 : x
  2. Step 2: Convert to fraction form
    7,324.30/10,978.57 = 3,166.28/x
  3. Step 3: Cross multiply
    7,324.30x = 10,978.57 × 3,166.28
  4. Step 4: Simplify right side
    7,324.30x = 34,761,226.62
  5. Step 5: Solve for x
    x = 34,761,226.62/7,324.30
  6. Step 6: Final answer
    x = 4,746.01

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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.