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Finding the Fourth Proportional to 8,998.53, 12,418.21 and 5,020.41

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Solution

The fourth proportional to 8,998.53, 12,418.21 and 5,020.41 is: 6,928.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,998.53 : 12,418.21 = 5,020.41 : x
  2. Step 2: Convert to fraction form
    8,998.53/12,418.21 = 5,020.41/x
  3. Step 3: Cross multiply
    8,998.53x = 12,418.21 × 5,020.41
  4. Step 4: Simplify right side
    8,998.53x = 62,344,558.51
  5. Step 5: Solve for x
    x = 62,344,558.51/8,998.53
  6. Step 6: Final answer
    x = 6,928.31

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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.