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Finding the Fourth Proportional to 25,110.40, 37,664.40 and 8,468.80

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Solution

The fourth proportional to 25,110.40, 37,664.40 and 8,468.80 is: 12,702.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,110.40 : 37,664.40 = 8,468.80 : x
  2. Step 2: Convert to fraction form
    25,110.40/37,664.40 = 8,468.80/x
  3. Step 3: Cross multiply
    25,110.40x = 37,664.40 × 8,468.80
  4. Step 4: Simplify right side
    25,110.40x = 318,972,270.72
  5. Step 5: Solve for x
    x = 318,972,270.72/25,110.40
  6. Step 6: Final answer
    x = 12,702.80

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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.