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Finding the Fourth Proportional to 3,372.96, 5,059.36 and 907.68

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Solution

The fourth proportional to 3,372.96, 5,059.36 and 907.68 is: 1,361.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,372.96 : 5,059.36 = 907.68 : x
  2. Step 2: Convert to fraction form
    3,372.96/5,059.36 = 907.68/x
  3. Step 3: Cross multiply
    3,372.96x = 5,059.36 × 907.68
  4. Step 4: Simplify right side
    3,372.96x = 4,592,279.88
  5. Step 5: Solve for x
    x = 4,592,279.88/3,372.96
  6. Step 6: Final answer
    x = 1,361.50

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1.5x scale

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.