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Finding the Fourth Proportional to 8,717.58, 12,028.26 and 5,890.14

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Solution

The fourth proportional to 8,717.58, 12,028.26 and 5,890.14 is: 8,127.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.58 : 12,028.26 = 5,890.14 : x
  2. Step 2: Convert to fraction form
    8,717.58/12,028.26 = 5,890.14/x
  3. Step 3: Cross multiply
    8,717.58x = 12,028.26 × 5,890.14
  4. Step 4: Simplify right side
    8,717.58x = 70,848,135.36
  5. Step 5: Solve for x
    x = 70,848,135.36/8,717.58
  6. Step 6: Final answer
    x = 8,127.04

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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.