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Finding the Fourth Proportional to 2,617.33, 3,925.77 and 862.32

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Solution

The fourth proportional to 2,617.33, 3,925.77 and 862.32 is: 1,293.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,617.33 : 3,925.77 = 862.32 : x
  2. Step 2: Convert to fraction form
    2,617.33/3,925.77 = 862.32/x
  3. Step 3: Cross multiply
    2,617.33x = 3,925.77 × 862.32
  4. Step 4: Simplify right side
    2,617.33x = 3,385,270.43
  5. Step 5: Solve for x
    x = 3,385,270.43/2,617.33
  6. Step 6: Final answer
    x = 1,293.40

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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.