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Finding the Fourth Proportional to 5,616.18, 7,750.32 and 3,258.78

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Solution

The fourth proportional to 5,616.18, 7,750.32 and 3,258.78 is: 4,497.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,616.18 : 7,750.32 = 3,258.78 : x
  2. Step 2: Convert to fraction form
    5,616.18/7,750.32 = 3,258.78/x
  3. Step 3: Cross multiply
    5,616.18x = 7,750.32 × 3,258.78
  4. Step 4: Simplify right side
    5,616.18x = 25,256,587.81
  5. Step 5: Solve for x
    x = 25,256,587.81/5,616.18
  6. Step 6: Final answer
    x = 4,497.11

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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.