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Finding the Fourth Proportional to 7,873.17, 11,803.05 and 3,488.23

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Solution

The fourth proportional to 7,873.17, 11,803.05 and 3,488.23 is: 5,229.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,873.17 : 11,803.05 = 3,488.23 : x
  2. Step 2: Convert to fraction form
    7,873.17/11,803.05 = 3,488.23/x
  3. Step 3: Cross multiply
    7,873.17x = 11,803.05 × 3,488.23
  4. Step 4: Simplify right side
    7,873.17x = 41,171,767.86
  5. Step 5: Solve for x
    x = 41,171,767.86/7,873.17
  6. Step 6: Final answer
    x = 5,229.38

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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.