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Finding the Fourth Proportional to 7,342.59, 11,016.05 and 2,957.79

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Solution

The fourth proportional to 7,342.59, 11,016.05 and 2,957.79 is: 4,437.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,342.59 : 11,016.05 = 2,957.79 : x
  2. Step 2: Convert to fraction form
    7,342.59/11,016.05 = 2,957.79/x
  3. Step 3: Cross multiply
    7,342.59x = 11,016.05 × 2,957.79
  4. Step 4: Simplify right side
    7,342.59x = 32,583,147.74
  5. Step 5: Solve for x
    x = 32,583,147.74/7,342.59
  6. Step 6: Final answer
    x = 4,437.56

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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.