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Finding the Fourth Proportional to 5,337.16, 7,365.22 and 2,979.48

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Solution

The fourth proportional to 5,337.16, 7,365.22 and 2,979.48 is: 4,111.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,337.16 : 7,365.22 = 2,979.48 : x
  2. Step 2: Convert to fraction form
    5,337.16/7,365.22 = 2,979.48/x
  3. Step 3: Cross multiply
    5,337.16x = 7,365.22 × 2,979.48
  4. Step 4: Simplify right side
    5,337.16x = 21,944,525.69
  5. Step 5: Solve for x
    x = 21,944,525.69/5,337.16
  6. Step 6: Final answer
    x = 4,111.65

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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.