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Finding the Fourth Proportional to 5,438.76, 7,505.62 and 2,954.76

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Solution

The fourth proportional to 5,438.76, 7,505.62 and 2,954.76 is: 4,077.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.76 : 7,505.62 = 2,954.76 : x
  2. Step 2: Convert to fraction form
    5,438.76/7,505.62 = 2,954.76/x
  3. Step 3: Cross multiply
    5,438.76x = 7,505.62 × 2,954.76
  4. Step 4: Simplify right side
    5,438.76x = 22,177,305.75
  5. Step 5: Solve for x
    x = 22,177,305.75/5,438.76
  6. Step 6: Final answer
    x = 4,077.64

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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.