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Finding the Fourth Proportional to 3,493.53, 4,821.12 and 2,708.64

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Solution

The fourth proportional to 3,493.53, 4,821.12 and 2,708.64 is: 3,737.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,493.53 : 4,821.12 = 2,708.64 : x
  2. Step 2: Convert to fraction form
    3,493.53/4,821.12 = 2,708.64/x
  3. Step 3: Cross multiply
    3,493.53x = 4,821.12 × 2,708.64
  4. Step 4: Simplify right side
    3,493.53x = 13,058,678.48
  5. Step 5: Solve for x
    x = 13,058,678.48/3,493.53
  6. Step 6: Final answer
    x = 3,737.96

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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.