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Finding the Fourth Proportional to 73,478.36, 101,400.24 and 39,944.36

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Solution

The fourth proportional to 73,478.36, 101,400.24 and 39,944.36 is: 55,123.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,478.36 : 101,400.24 = 39,944.36 : x
  2. Step 2: Convert to fraction form
    73,478.36/101,400.24 = 39,944.36/x
  3. Step 3: Cross multiply
    73,478.36x = 101,400.24 × 39,944.36
  4. Step 4: Simplify right side
    73,478.36x = 4,050,367,690.65
  5. Step 5: Solve for x
    x = 4,050,367,690.65/73,478.36
  6. Step 6: Final answer
    x = 55,123.27

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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.