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Finding the Fourth Proportional to 25,288.36, 37,938.44 and 8,648.52

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Solution

The fourth proportional to 25,288.36, 37,938.44 and 8,648.52 is: 12,974.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,288.36 : 37,938.44 = 8,648.52 : x
  2. Step 2: Convert to fraction form
    25,288.36/37,938.44 = 8,648.52/x
  3. Step 3: Cross multiply
    25,288.36x = 37,938.44 × 8,648.52
  4. Step 4: Simplify right side
    25,288.36x = 328,111,357.11
  5. Step 5: Solve for x
    x = 328,111,357.11/25,288.36
  6. Step 6: Final answer
    x = 12,974.80

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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.