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Finding the Fourth Proportional to 4,752.68, 7,129.98 and 1,465.64

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Solution

The fourth proportional to 4,752.68, 7,129.98 and 1,465.64 is: 2,198.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,752.68 : 7,129.98 = 1,465.64 : x
  2. Step 2: Convert to fraction form
    4,752.68/7,129.98 = 1,465.64/x
  3. Step 3: Cross multiply
    4,752.68x = 7,129.98 × 1,465.64
  4. Step 4: Simplify right side
    4,752.68x = 10,449,983.89
  5. Step 5: Solve for x
    x = 10,449,983.89/4,752.68
  6. Step 6: Final answer
    x = 2,198.76

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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.