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Finding the Fourth Proportional to 26,490.54, 39,711.10 and 8,948.10

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Solution

The fourth proportional to 26,490.54, 39,711.10 and 8,948.10 is: 13,413.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,490.54 : 39,711.10 = 8,948.10 : x
  2. Step 2: Convert to fraction form
    26,490.54/39,711.10 = 8,948.10/x
  3. Step 3: Cross multiply
    26,490.54x = 39,711.10 × 8,948.10
  4. Step 4: Simplify right side
    26,490.54x = 355,338,893.91
  5. Step 5: Solve for x
    x = 355,338,893.91/26,490.54
  6. Step 6: Final answer
    x = 13,413.80

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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.