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Finding the Fourth Proportional to 6,752.99, 10,129.19 and 4,781.41

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Solution

The fourth proportional to 6,752.99, 10,129.19 and 4,781.41 is: 7,171.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,752.99 : 10,129.19 = 4,781.41 : x
  2. Step 2: Convert to fraction form
    6,752.99/10,129.19 = 4,781.41/x
  3. Step 3: Cross multiply
    6,752.99x = 10,129.19 × 4,781.41
  4. Step 4: Simplify right side
    6,752.99x = 48,431,818.10
  5. Step 5: Solve for x
    x = 48,431,818.10/6,752.99
  6. Step 6: Final answer
    x = 7,171.91

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1.5x scale

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.