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Finding the Fourth Proportional to 5,480.82, 7,563.74 and 3,091.74

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Solution

The fourth proportional to 5,480.82, 7,563.74 and 3,091.74 is: 4,266.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,480.82 : 7,563.74 = 3,091.74 : x
  2. Step 2: Convert to fraction form
    5,480.82/7,563.74 = 3,091.74/x
  3. Step 3: Cross multiply
    5,480.82x = 7,563.74 × 3,091.74
  4. Step 4: Simplify right side
    5,480.82x = 23,385,117.51
  5. Step 5: Solve for x
    x = 23,385,117.51/5,480.82
  6. Step 6: Final answer
    x = 4,266.72

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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.