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Finding the Fourth Proportional to 7,280.71, 10,918.77 and 2,349.25

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Solution

The fourth proportional to 7,280.71, 10,918.77 and 2,349.25 is: 3,523.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,280.71 : 10,918.77 = 2,349.25 : x
  2. Step 2: Convert to fraction form
    7,280.71/10,918.77 = 2,349.25/x
  3. Step 3: Cross multiply
    7,280.71x = 10,918.77 × 2,349.25
  4. Step 4: Simplify right side
    7,280.71x = 25,650,920.42
  5. Step 5: Solve for x
    x = 25,650,920.42/7,280.71
  6. Step 6: Final answer
    x = 3,523.13

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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.