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Finding the Fourth Proportional to 69,593.48, 104,390.22 and 20,345.48

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Solution

The fourth proportional to 69,593.48, 104,390.22 and 20,345.48 is: 30,518.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,593.48 : 104,390.22 = 20,345.48 : x
  2. Step 2: Convert to fraction form
    69,593.48/104,390.22 = 20,345.48/x
  3. Step 3: Cross multiply
    69,593.48x = 104,390.22 × 20,345.48
  4. Step 4: Simplify right side
    69,593.48x = 2,123,869,133.21
  5. Step 5: Solve for x
    x = 2,123,869,133.21/69,593.48
  6. Step 6: Final answer
    x = 30,518.22

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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.