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Finding the Fourth Proportional to 4,943.64, 7,416.66 and 1,480.86

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Solution

The fourth proportional to 4,943.64, 7,416.66 and 1,480.86 is: 2,221.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,943.64 : 7,416.66 = 1,480.86 : x
  2. Step 2: Convert to fraction form
    4,943.64/7,416.66 = 1,480.86/x
  3. Step 3: Cross multiply
    4,943.64x = 7,416.66 × 1,480.86
  4. Step 4: Simplify right side
    4,943.64x = 10,983,035.13
  5. Step 5: Solve for x
    x = 10,983,035.13/4,943.64
  6. Step 6: Final answer
    x = 2,221.65

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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.