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Finding the Fourth Proportional to 5,266.88, 7,888.44 and 4,087.46

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Solution

The fourth proportional to 5,266.88, 7,888.44 and 4,087.46 is: 6,121.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,266.88 : 7,888.44 = 4,087.46 : x
  2. Step 2: Convert to fraction form
    5,266.88/7,888.44 = 4,087.46/x
  3. Step 3: Cross multiply
    5,266.88x = 7,888.44 × 4,087.46
  4. Step 4: Simplify right side
    5,266.88x = 32,243,682.96
  5. Step 5: Solve for x
    x = 32,243,682.96/5,266.88
  6. Step 6: Final answer
    x = 6,121.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.