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Finding the Fourth Proportional to 7,098.99, 10,641.29 and 3,395.79

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Solution

The fourth proportional to 7,098.99, 10,641.29 and 3,395.79 is: 5,090.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,098.99 : 10,641.29 = 3,395.79 : x
  2. Step 2: Convert to fraction form
    7,098.99/10,641.29 = 3,395.79/x
  3. Step 3: Cross multiply
    7,098.99x = 10,641.29 × 3,395.79
  4. Step 4: Simplify right side
    7,098.99x = 36,135,569.19
  5. Step 5: Solve for x
    x = 36,135,569.19/7,098.99
  6. Step 6: Final answer
    x = 5,090.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.