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Finding the Fourth Proportional to 64,523.77, 89,039.90 and 35,845.43

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Solution

The fourth proportional to 64,523.77, 89,039.90 and 35,845.43 is: 49,465.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,523.77 : 89,039.90 = 35,845.43 : x
  2. Step 2: Convert to fraction form
    64,523.77/89,039.90 = 35,845.43/x
  3. Step 3: Cross multiply
    64,523.77x = 89,039.90 × 35,845.43
  4. Step 4: Simplify right side
    64,523.77x = 3,191,673,147.07
  5. Step 5: Solve for x
    x = 3,191,673,147.07/64,523.77
  6. Step 6: Final answer
    x = 49,465.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.