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Finding the Fourth Proportional to 3,258.47, 4,887.71 and 793.27

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Solution

The fourth proportional to 3,258.47, 4,887.71 and 793.27 is: 1,189.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,258.47 : 4,887.71 = 793.27 : x
  2. Step 2: Convert to fraction form
    3,258.47/4,887.71 = 793.27/x
  3. Step 3: Cross multiply
    3,258.47x = 4,887.71 × 793.27
  4. Step 4: Simplify right side
    3,258.47x = 3,877,273.71
  5. Step 5: Solve for x
    x = 3,877,273.71/3,258.47
  6. Step 6: Final answer
    x = 1,189.91

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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.