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Finding the Fourth Proportional to 6,916.22, 9,542.15 and 4,083.71

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Solution

The fourth proportional to 6,916.22, 9,542.15 and 4,083.71 is: 5,634.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,916.22 : 9,542.15 = 4,083.71 : x
  2. Step 2: Convert to fraction form
    6,916.22/9,542.15 = 4,083.71/x
  3. Step 3: Cross multiply
    6,916.22x = 9,542.15 × 4,083.71
  4. Step 4: Simplify right side
    6,916.22x = 38,967,390.50
  5. Step 5: Solve for x
    x = 38,967,390.50/6,916.22
  6. Step 6: Final answer
    x = 5,634.21

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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.