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Finding the Fourth Proportional to 3,372.60, 5,059.11 and 907.38

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Solution

The fourth proportional to 3,372.60, 5,059.11 and 907.38 is: 1,361.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,372.60 : 5,059.11 = 907.38 : x
  2. Step 2: Convert to fraction form
    3,372.60/5,059.11 = 907.38/x
  3. Step 3: Cross multiply
    3,372.60x = 5,059.11 × 907.38
  4. Step 4: Simplify right side
    3,372.60x = 4,590,535.23
  5. Step 5: Solve for x
    x = 4,590,535.23/3,372.60
  6. Step 6: Final answer
    x = 1,361.13

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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.