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Finding the Fourth Proportional to 20,161,327.20, 30,241,990.82 and 20,161,327.20

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Solution

The fourth proportional to 20,161,327.20, 30,241,990.82 and 20,161,327.20 is: 30,241,990.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161,327.20 : 30,241,990.82 = 20,161,327.20 : x
  2. Step 2: Convert to fraction form
    20,161,327.20/30,241,990.82 = 20,161,327.20/x
  3. Step 3: Cross multiply
    20,161,327.20x = 30,241,990.82 × 20,161,327.20
  4. Step 4: Simplify right side
    20,161,327.20x = 609,718,672,101,416.25
  5. Step 5: Solve for x
    x = 609,718,672,101,416.25/20,161,327.20
  6. Step 6: Final answer
    x = 30,241,990.82

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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.