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Finding the Fourth Proportional to 6,703.89, 9,251.51 and 3,719.61

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Solution

The fourth proportional to 6,703.89, 9,251.51 and 3,719.61 is: 5,133.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,703.89 : 9,251.51 = 3,719.61 : x
  2. Step 2: Convert to fraction form
    6,703.89/9,251.51 = 3,719.61/x
  3. Step 3: Cross multiply
    6,703.89x = 9,251.51 × 3,719.61
  4. Step 4: Simplify right side
    6,703.89x = 34,412,009.11
  5. Step 5: Solve for x
    x = 34,412,009.11/6,703.89
  6. Step 6: Final answer
    x = 5,133.14

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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.