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Finding the Fourth Proportional to 6,474.40, 9,695.13 and 4,276.42

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Solution

The fourth proportional to 6,474.40, 9,695.13 and 4,276.42 is: 6,403.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,474.40 : 9,695.13 = 4,276.42 : x
  2. Step 2: Convert to fraction form
    6,474.40/9,695.13 = 4,276.42/x
  3. Step 3: Cross multiply
    6,474.40x = 9,695.13 × 4,276.42
  4. Step 4: Simplify right side
    6,474.40x = 41,460,447.83
  5. Step 5: Solve for x
    x = 41,460,447.83/6,474.40
  6. Step 6: Final answer
    x = 6,403.75

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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.