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Finding the Fourth Proportional to 3,480.66, 5,221.01 and 848.16

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Solution

The fourth proportional to 3,480.66, 5,221.01 and 848.16 is: 1,272.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.66 : 5,221.01 = 848.16 : x
  2. Step 2: Convert to fraction form
    3,480.66/5,221.01 = 848.16/x
  3. Step 3: Cross multiply
    3,480.66x = 5,221.01 × 848.16
  4. Step 4: Simplify right side
    3,480.66x = 4,428,247.60
  5. Step 5: Solve for x
    x = 4,428,247.60/3,480.66
  6. Step 6: Final answer
    x = 1,272.24

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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.