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Finding the Fourth Proportional to 70,877.44, 106,291.20 and 20,944.24

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Solution

The fourth proportional to 70,877.44, 106,291.20 and 20,944.24 is: 31,408.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,877.44 : 106,291.20 = 20,944.24 : x
  2. Step 2: Convert to fraction form
    70,877.44/106,291.20 = 20,944.24/x
  3. Step 3: Cross multiply
    70,877.44x = 106,291.20 × 20,944.24
  4. Step 4: Simplify right side
    70,877.44x = 2,226,188,402.69
  5. Step 5: Solve for x
    x = 2,226,188,402.69/70,877.44
  6. Step 6: Final answer
    x = 31,408.98

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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.