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Finding the Fourth Proportional to 22,879.40, 34,343.64 and 20,263.12

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Solution

The fourth proportional to 22,879.40, 34,343.64 and 20,263.12 is: 30,416.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,879.40 : 34,343.64 = 20,263.12 : x
  2. Step 2: Convert to fraction form
    22,879.40/34,343.64 = 20,263.12/x
  3. Step 3: Cross multiply
    22,879.40x = 34,343.64 × 20,263.12
  4. Step 4: Simplify right side
    22,879.40x = 695,909,298.56
  5. Step 5: Solve for x
    x = 695,909,298.56/22,879.40
  6. Step 6: Final answer
    x = 30,416.41

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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.