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Finding the Fourth Proportional to 72,921.45, 109,296.19 and 32,893.58

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Solution

The fourth proportional to 72,921.45, 109,296.19 and 32,893.58 is: 49,301.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,921.45 : 109,296.19 = 32,893.58 : x
  2. Step 2: Convert to fraction form
    72,921.45/109,296.19 = 32,893.58/x
  3. Step 3: Cross multiply
    72,921.45x = 109,296.19 × 32,893.58
  4. Step 4: Simplify right side
    72,921.45x = 3,595,143,160.47
  5. Step 5: Solve for x
    x = 3,595,143,160.47/72,921.45
  6. Step 6: Final answer
    x = 49,301.59

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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.