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Finding the Fourth Proportional to 22,472,994.60, 33,709,491.90 and 21,728,977.20

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Solution

The fourth proportional to 22,472,994.60, 33,709,491.90 and 21,728,977.20 is: 32,593,465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,472,994.60 : 33,709,491.90 = 21,728,977.20 : x
  2. Step 2: Convert to fraction form
    22,472,994.60/33,709,491.90 = 21,728,977.20/x
  3. Step 3: Cross multiply
    22,472,994.60x = 33,709,491.90 × 21,728,977.20
  4. Step 4: Simplify right side
    22,472,994.60x = 732,472,780,918,684.62
  5. Step 5: Solve for x
    x = 732,472,780,918,684.62/22,472,994.60
  6. Step 6: Final answer
    x = 32,593,465.80

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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.