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Finding the Fourth Proportional to 5,168.74, 7,134.46 and 4,904.26

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Solution

The fourth proportional to 5,168.74, 7,134.46 and 4,904.26 is: 6,769.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168.74 : 7,134.46 = 4,904.26 : x
  2. Step 2: Convert to fraction form
    5,168.74/7,134.46 = 4,904.26/x
  3. Step 3: Cross multiply
    5,168.74x = 7,134.46 × 4,904.26
  4. Step 4: Simplify right side
    5,168.74x = 34,989,246.80
  5. Step 5: Solve for x
    x = 34,989,246.80/5,168.74
  6. Step 6: Final answer
    x = 6,769.40

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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.