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Finding the Fourth Proportional to 2,521.78, 3,773.14 and 2,265.99

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Solution

The fourth proportional to 2,521.78, 3,773.14 and 2,265.99 is: 3,390.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,521.78 : 3,773.14 = 2,265.99 : x
  2. Step 2: Convert to fraction form
    2,521.78/3,773.14 = 2,265.99/x
  3. Step 3: Cross multiply
    2,521.78x = 3,773.14 × 2,265.99
  4. Step 4: Simplify right side
    2,521.78x = 8,549,897.51
  5. Step 5: Solve for x
    x = 8,549,897.51/2,521.78
  6. Step 6: Final answer
    x = 3,390.42

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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.