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Finding the Fourth Proportional to 64,893.88, 89,553.55 and 35,085.88

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Solution

The fourth proportional to 64,893.88, 89,553.55 and 35,085.88 is: 48,418.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,893.88 : 89,553.55 = 35,085.88 : x
  2. Step 2: Convert to fraction form
    64,893.88/89,553.55 = 35,085.88/x
  3. Step 3: Cross multiply
    64,893.88x = 89,553.55 × 35,085.88
  4. Step 4: Simplify right side
    64,893.88x = 3,142,064,661.11
  5. Step 5: Solve for x
    x = 3,142,064,661.11/64,893.88
  6. Step 6: Final answer
    x = 48,418.51

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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.