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Finding the Fourth Proportional to 6,918, 10,378.62 and 2,301

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Solution

The fourth proportional to 6,918, 10,378.62 and 2,301 is: 3,452.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918 : 10,378.62 = 2,301 : x
  2. Step 2: Convert to fraction form
    6,918/10,378.62 = 2,301/x
  3. Step 3: Cross multiply
    6,918x = 10,378.62 × 2,301
  4. Step 4: Simplify right side
    6,918x = 23,881,204.62
  5. Step 5: Solve for x
    x = 23,881,204.62/6,918
  6. Step 6: Final answer
    x = 3,452.04

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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.