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Finding the Fourth Proportional to 5,981.78, 8,254.50 and 3,328.64

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Solution

The fourth proportional to 5,981.78, 8,254.50 and 3,328.64 is: 4,593.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,981.78 : 8,254.50 = 3,328.64 : x
  2. Step 2: Convert to fraction form
    5,981.78/8,254.50 = 3,328.64/x
  3. Step 3: Cross multiply
    5,981.78x = 8,254.50 × 3,328.64
  4. Step 4: Simplify right side
    5,981.78x = 27,476,258.88
  5. Step 5: Solve for x
    x = 27,476,258.88/5,981.78
  6. Step 6: Final answer
    x = 4,593.32

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Double scale
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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.