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Finding the Fourth Proportional to 5,603.84, 7,734.76 and 3,245.68

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Solution

The fourth proportional to 5,603.84, 7,734.76 and 3,245.68 is: 4,479.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,603.84 : 7,734.76 = 3,245.68 : x
  2. Step 2: Convert to fraction form
    5,603.84/7,734.76 = 3,245.68/x
  3. Step 3: Cross multiply
    5,603.84x = 7,734.76 × 3,245.68
  4. Step 4: Simplify right side
    5,603.84x = 25,104,555.84
  5. Step 5: Solve for x
    x = 25,104,555.84/5,603.84
  6. Step 6: Final answer
    x = 4,479.88

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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.