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Finding the Fourth Proportional to 7,691.74, 10,615.13 and 4,334.83

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Solution

The fourth proportional to 7,691.74, 10,615.13 and 4,334.83 is: 5,982.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,691.74 : 10,615.13 = 4,334.83 : x
  2. Step 2: Convert to fraction form
    7,691.74/10,615.13 = 4,334.83/x
  3. Step 3: Cross multiply
    7,691.74x = 10,615.13 × 4,334.83
  4. Step 4: Simplify right side
    7,691.74x = 46,014,783.98
  5. Step 5: Solve for x
    x = 46,014,783.98/7,691.74
  6. Step 6: Final answer
    x = 5,982.36

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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.