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Finding the Fourth Proportional to 6,842.88, 9,442.51 and 3,859.17

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Solution

The fourth proportional to 6,842.88, 9,442.51 and 3,859.17 is: 5,325.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,842.88 : 9,442.51 = 3,859.17 : x
  2. Step 2: Convert to fraction form
    6,842.88/9,442.51 = 3,859.17/x
  3. Step 3: Cross multiply
    6,842.88x = 9,442.51 × 3,859.17
  4. Step 4: Simplify right side
    6,842.88x = 36,440,232.02
  5. Step 5: Solve for x
    x = 36,440,232.02/6,842.88
  6. Step 6: Final answer
    x = 5,325.28

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1.5x scale

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.