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Finding the Fourth Proportional to 14,044.32, 19,380.96 and 7,756.48

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Solution

The fourth proportional to 14,044.32, 19,380.96 and 7,756.48 is: 10,703.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,044.32 : 19,380.96 = 7,756.48 : x
  2. Step 2: Convert to fraction form
    14,044.32/19,380.96 = 7,756.48/x
  3. Step 3: Cross multiply
    14,044.32x = 19,380.96 × 7,756.48
  4. Step 4: Simplify right side
    14,044.32x = 150,328,028.62
  5. Step 5: Solve for x
    x = 150,328,028.62/14,044.32
  6. Step 6: Final answer
    x = 10,703.83

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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.