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Finding the Fourth Proportional to 6,211.01, 8,570.54 and 3,821.11

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Solution

The fourth proportional to 6,211.01, 8,570.54 and 3,821.11 is: 5,272.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,211.01 : 8,570.54 = 3,821.11 : x
  2. Step 2: Convert to fraction form
    6,211.01/8,570.54 = 3,821.11/x
  3. Step 3: Cross multiply
    6,211.01x = 8,570.54 × 3,821.11
  4. Step 4: Simplify right side
    6,211.01x = 32,748,976.10
  5. Step 5: Solve for x
    x = 32,748,976.10/6,211.01
  6. Step 6: Final answer
    x = 5,272.73

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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.