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Finding the Fourth Proportional to 5,746.78, 7,930.25 and 3,229.00

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Solution

The fourth proportional to 5,746.78, 7,930.25 and 3,229.00 is: 4,455.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,746.78 : 7,930.25 = 3,229.00 : x
  2. Step 2: Convert to fraction form
    5,746.78/7,930.25 = 3,229.00/x
  3. Step 3: Cross multiply
    5,746.78x = 7,930.25 × 3,229.00
  4. Step 4: Simplify right side
    5,746.78x = 25,606,737.60
  5. Step 5: Solve for x
    x = 25,606,737.60/5,746.78
  6. Step 6: Final answer
    x = 4,455.84

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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.