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Finding the Fourth Proportional to 4,788.66, 7,173.90 and 2,320.02

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Solution

The fourth proportional to 4,788.66, 7,173.90 and 2,320.02 is: 3,475.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,788.66 : 7,173.90 = 2,320.02 : x
  2. Step 2: Convert to fraction form
    4,788.66/7,173.90 = 2,320.02/x
  3. Step 3: Cross multiply
    4,788.66x = 7,173.90 × 2,320.02
  4. Step 4: Simplify right side
    4,788.66x = 16,643,591.48
  5. Step 5: Solve for x
    x = 16,643,591.48/4,788.66
  6. Step 6: Final answer
    x = 3,475.63

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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.