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Finding the Fourth Proportional to 6,507.08, 8,979.72 and 3,712.52

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Solution

The fourth proportional to 6,507.08, 8,979.72 and 3,712.52 is: 5,123.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,507.08 : 8,979.72 = 3,712.52 : x
  2. Step 2: Convert to fraction form
    6,507.08/8,979.72 = 3,712.52/x
  3. Step 3: Cross multiply
    6,507.08x = 8,979.72 × 3,712.52
  4. Step 4: Simplify right side
    6,507.08x = 33,337,390.09
  5. Step 5: Solve for x
    x = 33,337,390.09/6,507.08
  6. Step 6: Final answer
    x = 5,123.25

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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.