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Finding the Fourth Proportional to 42,589.89, 63,906.75 and 22,906.89

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Solution

The fourth proportional to 42,589.89, 63,906.75 and 22,906.89 is: 34,372.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,589.89 : 63,906.75 = 22,906.89 : x
  2. Step 2: Convert to fraction form
    42,589.89/63,906.75 = 22,906.89/x
  3. Step 3: Cross multiply
    42,589.89x = 63,906.75 × 22,906.89
  4. Step 4: Simplify right side
    42,589.89x = 1,463,904,892.51
  5. Step 5: Solve for x
    x = 1,463,904,892.51/42,589.89
  6. Step 6: Final answer
    x = 34,372.12

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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.