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Finding the Fourth Proportional to 22,809.99, 31,508.01 and 18,350.54

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Solution

The fourth proportional to 22,809.99, 31,508.01 and 18,350.54 is: 25,348.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,809.99 : 31,508.01 = 18,350.54 : x
  2. Step 2: Convert to fraction form
    22,809.99/31,508.01 = 18,350.54/x
  3. Step 3: Cross multiply
    22,809.99x = 31,508.01 × 18,350.54
  4. Step 4: Simplify right side
    22,809.99x = 578,188,997.83
  5. Step 5: Solve for x
    x = 578,188,997.83/22,809.99
  6. Step 6: Final answer
    x = 25,348.06

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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.