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Finding the Fourth Proportional to 7,109.61, 10,659.84 and 2,952.48

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Solution

The fourth proportional to 7,109.61, 10,659.84 and 2,952.48 is: 4,426.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,109.61 : 10,659.84 = 2,952.48 : x
  2. Step 2: Convert to fraction form
    7,109.61/10,659.84 = 2,952.48/x
  3. Step 3: Cross multiply
    7,109.61x = 10,659.84 × 2,952.48
  4. Step 4: Simplify right side
    7,109.61x = 31,472,964.40
  5. Step 5: Solve for x
    x = 31,472,964.40/7,109.61
  6. Step 6: Final answer
    x = 4,426.82

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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.