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Finding the Fourth Proportional to 12,042.88, 16,619.76 and 6,737.44

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Solution

The fourth proportional to 12,042.88, 16,619.76 and 6,737.44 is: 9,297.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,042.88 : 16,619.76 = 6,737.44 : x
  2. Step 2: Convert to fraction form
    12,042.88/16,619.76 = 6,737.44/x
  3. Step 3: Cross multiply
    12,042.88x = 16,619.76 × 6,737.44
  4. Step 4: Simplify right side
    12,042.88x = 111,974,635.81
  5. Step 5: Solve for x
    x = 111,974,635.81/12,042.88
  6. Step 6: Final answer
    x = 9,297.99

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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.