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Finding the Fourth Proportional to 7,915.51, 11,871.24 and 2,367.42

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Solution

The fourth proportional to 7,915.51, 11,871.24 and 2,367.42 is: 3,550.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.51 : 11,871.24 = 2,367.42 : x
  2. Step 2: Convert to fraction form
    7,915.51/11,871.24 = 2,367.42/x
  3. Step 3: Cross multiply
    7,915.51x = 11,871.24 × 2,367.42
  4. Step 4: Simplify right side
    7,915.51x = 28,104,211.00
  5. Step 5: Solve for x
    x = 28,104,211.00/7,915.51
  6. Step 6: Final answer
    x = 3,550.52

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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.