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Finding the Fourth Proportional to 64,131.69, 88,500 and 35,058.90

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Solution

The fourth proportional to 64,131.69, 88,500 and 35,058.90 is: 48,380.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,131.69 : 88,500 = 35,058.90 : x
  2. Step 2: Convert to fraction form
    64,131.69/88,500 = 35,058.90/x
  3. Step 3: Cross multiply
    64,131.69x = 88,500 × 35,058.90
  4. Step 4: Simplify right side
    64,131.69x = 3,102,712,650
  5. Step 5: Solve for x
    x = 3,102,712,650/64,131.69
  6. Step 6: Final answer
    x = 48,380.34

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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.