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Finding the Fourth Proportional to 6,898.59, 9,519.80 and 3,914.01

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Solution

The fourth proportional to 6,898.59, 9,519.80 and 3,914.01 is: 5,401.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,898.59 : 9,519.80 = 3,914.01 : x
  2. Step 2: Convert to fraction form
    6,898.59/9,519.80 = 3,914.01/x
  3. Step 3: Cross multiply
    6,898.59x = 9,519.80 × 3,914.01
  4. Step 4: Simplify right side
    6,898.59x = 37,260,572.83
  5. Step 5: Solve for x
    x = 37,260,572.83/6,898.59
  6. Step 6: Final answer
    x = 5,401.19

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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.