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Finding the Fourth Proportional to 7,334.08, 10,121.04 and 3,976.86

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Solution

The fourth proportional to 7,334.08, 10,121.04 and 3,976.86 is: 5,488.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,334.08 : 10,121.04 = 3,976.86 : x
  2. Step 2: Convert to fraction form
    7,334.08/10,121.04 = 3,976.86/x
  3. Step 3: Cross multiply
    7,334.08x = 10,121.04 × 3,976.86
  4. Step 4: Simplify right side
    7,334.08x = 40,249,959.13
  5. Step 5: Solve for x
    x = 40,249,959.13/7,334.08
  6. Step 6: Final answer
    x = 5,488.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.