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Finding the Fourth Proportional to 8,832.02, 13,181.94 and 8,686.22

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Solution

The fourth proportional to 8,832.02, 13,181.94 and 8,686.22 is: 12,964.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,832.02 : 13,181.94 = 8,686.22 : x
  2. Step 2: Convert to fraction form
    8,832.02/13,181.94 = 8,686.22/x
  3. Step 3: Cross multiply
    8,832.02x = 13,181.94 × 8,686.22
  4. Step 4: Simplify right side
    8,832.02x = 114,501,187.44
  5. Step 5: Solve for x
    x = 114,501,187.44/8,832.02
  6. Step 6: Final answer
    x = 12,964.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.