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Finding the Fourth Proportional to 57,318.14, 79,101.51 and 31,824.51

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Solution

The fourth proportional to 57,318.14, 79,101.51 and 31,824.51 is: 43,919.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,318.14 : 79,101.51 = 31,824.51 : x
  2. Step 2: Convert to fraction form
    57,318.14/79,101.51 = 31,824.51/x
  3. Step 3: Cross multiply
    57,318.14x = 79,101.51 × 31,824.51
  4. Step 4: Simplify right side
    57,318.14x = 2,517,366,796.01
  5. Step 5: Solve for x
    x = 2,517,366,796.01/57,318.14
  6. Step 6: Final answer
    x = 43,919.20

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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.