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Finding the Fourth Proportional to 29,019.72, 43,528.08 and 7,959.41

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Solution

The fourth proportional to 29,019.72, 43,528.08 and 7,959.41 is: 11,938.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,019.72 : 43,528.08 = 7,959.41 : x
  2. Step 2: Convert to fraction form
    29,019.72/43,528.08 = 7,959.41/x
  3. Step 3: Cross multiply
    29,019.72x = 43,528.08 × 7,959.41
  4. Step 4: Simplify right side
    29,019.72x = 346,458,055.52
  5. Step 5: Solve for x
    x = 346,458,055.52/29,019.72
  6. Step 6: Final answer
    x = 11,938.71

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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.