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Finding the Fourth Proportional to 15,062.61, 20,787.63 and 8,348.85

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Solution

The fourth proportional to 15,062.61, 20,787.63 and 8,348.85 is: 11,522.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,062.61 : 20,787.63 = 8,348.85 : x
  2. Step 2: Convert to fraction form
    15,062.61/20,787.63 = 8,348.85/x
  3. Step 3: Cross multiply
    15,062.61x = 20,787.63 × 8,348.85
  4. Step 4: Simplify right side
    15,062.61x = 173,552,804.73
  5. Step 5: Solve for x
    x = 173,552,804.73/15,062.61
  6. Step 6: Final answer
    x = 11,522.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.