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Finding the Fourth Proportional to 25,874.04, 38,788.02 and 12,015.48

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Solution

The fourth proportional to 25,874.04, 38,788.02 and 12,015.48 is: 18,012.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,874.04 : 38,788.02 = 12,015.48 : x
  2. Step 2: Convert to fraction form
    25,874.04/38,788.02 = 12,015.48/x
  3. Step 3: Cross multiply
    25,874.04x = 38,788.02 × 12,015.48
  4. Step 4: Simplify right side
    25,874.04x = 466,056,678.55
  5. Step 5: Solve for x
    x = 466,056,678.55/25,874.04
  6. Step 6: Final answer
    x = 18,012.52

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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.