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Finding the Fourth Proportional to 2,233.12, 3,348.51 and 771.93

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Solution

The fourth proportional to 2,233.12, 3,348.51 and 771.93 is: 1,157.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,233.12 : 3,348.51 = 771.93 : x
  2. Step 2: Convert to fraction form
    2,233.12/3,348.51 = 771.93/x
  3. Step 3: Cross multiply
    2,233.12x = 3,348.51 × 771.93
  4. Step 4: Simplify right side
    2,233.12x = 2,584,815.32
  5. Step 5: Solve for x
    x = 2,584,815.32/2,233.12
  6. Step 6: Final answer
    x = 1,157.49

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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.