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Finding the Fourth Proportional to 4,959.83, 7,440.85 and 1,672.84

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Solution

The fourth proportional to 4,959.83, 7,440.85 and 1,672.84 is: 2,509.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,959.83 : 7,440.85 = 1,672.84 : x
  2. Step 2: Convert to fraction form
    4,959.83/7,440.85 = 1,672.84/x
  3. Step 3: Cross multiply
    4,959.83x = 7,440.85 × 1,672.84
  4. Step 4: Simplify right side
    4,959.83x = 12,447,350.09
  5. Step 5: Solve for x
    x = 12,447,350.09/4,959.83
  6. Step 6: Final answer
    x = 2,509.63

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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.