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Finding the Fourth Proportional to 22,018,477.20, 33,027,715.80 and 20,034,430.80

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Solution

The fourth proportional to 22,018,477.20, 33,027,715.80 and 20,034,430.80 is: 30,051,646.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,018,477.20 : 33,027,715.80 = 20,034,430.80 : x
  2. Step 2: Convert to fraction form
    22,018,477.20/33,027,715.80 = 20,034,430.80/x
  3. Step 3: Cross multiply
    22,018,477.20x = 33,027,715.80 × 20,034,430.80
  4. Step 4: Simplify right side
    22,018,477.20x = 661,691,486,677,166.62
  5. Step 5: Solve for x
    x = 661,691,486,677,166.62/22,018,477.20
  6. Step 6: Final answer
    x = 30,051,646.20

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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.