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Finding the Fourth Proportional to 3,415.97, 5,123.36 and 950.13

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Solution

The fourth proportional to 3,415.97, 5,123.36 and 950.13 is: 1,425.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.97 : 5,123.36 = 950.13 : x
  2. Step 2: Convert to fraction form
    3,415.97/5,123.36 = 950.13/x
  3. Step 3: Cross multiply
    3,415.97x = 5,123.36 × 950.13
  4. Step 4: Simplify right side
    3,415.97x = 4,867,858.04
  5. Step 5: Solve for x
    x = 4,867,858.04/3,415.97
  6. Step 6: Final answer
    x = 1,425.03

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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.