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Finding the Fourth Proportional to 7,813.02, 11,721.34 and 2,266.46

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Solution

The fourth proportional to 7,813.02, 11,721.34 and 2,266.46 is: 3,400.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,813.02 : 11,721.34 = 2,266.46 : x
  2. Step 2: Convert to fraction form
    7,813.02/11,721.34 = 2,266.46/x
  3. Step 3: Cross multiply
    7,813.02x = 11,721.34 × 2,266.46
  4. Step 4: Simplify right side
    7,813.02x = 26,565,948.26
  5. Step 5: Solve for x
    x = 26,565,948.26/7,813.02
  6. Step 6: Final answer
    x = 3,400.22

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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.