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Finding the Fourth Proportional to 22,165,066.60, 33,171,978.30 and 18,574,887.40

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Solution

The fourth proportional to 22,165,066.60, 33,171,978.30 and 18,574,887.40 is: 27,798,958.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,165,066.60 : 33,171,978.30 = 18,574,887.40 : x
  2. Step 2: Convert to fraction form
    22,165,066.60/33,171,978.30 = 18,574,887.40/x
  3. Step 3: Cross multiply
    22,165,066.60x = 33,171,978.30 × 18,574,887.40
  4. Step 4: Simplify right side
    22,165,066.60x = 616,165,761,757,743.38
  5. Step 5: Solve for x
    x = 616,165,761,757,743.38/22,165,066.60
  6. Step 6: Final answer
    x = 27,798,958.28

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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.