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Finding the Fourth Proportional to 4,803.55, 6,629.18 and 3,209.18

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Solution

The fourth proportional to 4,803.55, 6,629.18 and 3,209.18 is: 4,428.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,803.55 : 6,629.18 = 3,209.18 : x
  2. Step 2: Convert to fraction form
    4,803.55/6,629.18 = 3,209.18/x
  3. Step 3: Cross multiply
    4,803.55x = 6,629.18 × 3,209.18
  4. Step 4: Simplify right side
    4,803.55x = 21,274,182.68
  5. Step 5: Solve for x
    x = 21,274,182.68/4,803.55
  6. Step 6: Final answer
    x = 4,428.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.