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Finding the Fourth Proportional to 5,921.16, 8,174.16 and 3,683.76

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Solution

The fourth proportional to 5,921.16, 8,174.16 and 3,683.76 is: 5,085.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,921.16 : 8,174.16 = 3,683.76 : x
  2. Step 2: Convert to fraction form
    5,921.16/8,174.16 = 3,683.76/x
  3. Step 3: Cross multiply
    5,921.16x = 8,174.16 × 3,683.76
  4. Step 4: Simplify right side
    5,921.16x = 30,111,643.64
  5. Step 5: Solve for x
    x = 30,111,643.64/5,921.16
  6. Step 6: Final answer
    x = 5,085.43

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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.