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Finding the Fourth Proportional to 6,885.25, 9,430.22 and 6,481.16

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Solution

The fourth proportional to 6,885.25, 9,430.22 and 6,481.16 is: 8,876.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,885.25 : 9,430.22 = 6,481.16 : x
  2. Step 2: Convert to fraction form
    6,885.25/9,430.22 = 6,481.16/x
  3. Step 3: Cross multiply
    6,885.25x = 9,430.22 × 6,481.16
  4. Step 4: Simplify right side
    6,885.25x = 61,118,822.12
  5. Step 5: Solve for x
    x = 61,118,822.12/6,885.25
  6. Step 6: Final answer
    x = 8,876.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.