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Finding the Fourth Proportional to 9,394.25, 12,965.76 and 5,361.66

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Solution

The fourth proportional to 9,394.25, 12,965.76 and 5,361.66 is: 7,400.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,394.25 : 12,965.76 = 5,361.66 : x
  2. Step 2: Convert to fraction form
    9,394.25/12,965.76 = 5,361.66/x
  3. Step 3: Cross multiply
    9,394.25x = 12,965.76 × 5,361.66
  4. Step 4: Simplify right side
    9,394.25x = 69,517,996.76
  5. Step 5: Solve for x
    x = 69,517,996.76/9,394.25
  6. Step 6: Final answer
    x = 7,400.06

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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.