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Finding the Fourth Proportional to 7,179.57, 9,908.04 and 4,347.47

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Solution

The fourth proportional to 7,179.57, 9,908.04 and 4,347.47 is: 5,999.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.57 : 9,908.04 = 4,347.47 : x
  2. Step 2: Convert to fraction form
    7,179.57/9,908.04 = 4,347.47/x
  3. Step 3: Cross multiply
    7,179.57x = 9,908.04 × 4,347.47
  4. Step 4: Simplify right side
    7,179.57x = 43,074,923.28
  5. Step 5: Solve for x
    x = 43,074,923.28/7,179.57
  6. Step 6: Final answer
    x = 5,999.65

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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.