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Finding the Fourth Proportional to 3,172.01, 4,350.11 and 3,038.97

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Solution

The fourth proportional to 3,172.01, 4,350.11 and 3,038.97 is: 4,167.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.01 : 4,350.11 = 3,038.97 : x
  2. Step 2: Convert to fraction form
    3,172.01/4,350.11 = 3,038.97/x
  3. Step 3: Cross multiply
    3,172.01x = 4,350.11 × 3,038.97
  4. Step 4: Simplify right side
    3,172.01x = 13,219,830.44
  5. Step 5: Solve for x
    x = 13,219,830.44/3,172.01
  6. Step 6: Final answer
    x = 4,167.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.