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Finding the Fourth Proportional to 5,888.22, 8,127.87 and 3,899.42

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Solution

The fourth proportional to 5,888.22, 8,127.87 and 3,899.42 is: 5,382.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,888.22 : 8,127.87 = 3,899.42 : x
  2. Step 2: Convert to fraction form
    5,888.22/8,127.87 = 3,899.42/x
  3. Step 3: Cross multiply
    5,888.22x = 8,127.87 × 3,899.42
  4. Step 4: Simplify right side
    5,888.22x = 31,693,942.16
  5. Step 5: Solve for x
    x = 31,693,942.16/5,888.22
  6. Step 6: Final answer
    x = 5,382.60

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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.