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Finding the Fourth Proportional to 7,060.96, 9,744 and 3,917.04

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Solution

The fourth proportional to 7,060.96, 9,744 and 3,917.04 is: 5,405.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,060.96 : 9,744 = 3,917.04 : x
  2. Step 2: Convert to fraction form
    7,060.96/9,744 = 3,917.04/x
  3. Step 3: Cross multiply
    7,060.96x = 9,744 × 3,917.04
  4. Step 4: Simplify right side
    7,060.96x = 38,167,637.76
  5. Step 5: Solve for x
    x = 38,167,637.76/7,060.96
  6. Step 6: Final answer
    x = 5,405.45

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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.