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Finding the Fourth Proportional to 64,129.50, 88,498.08 and 35,451

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Solution

The fourth proportional to 64,129.50, 88,498.08 and 35,451 is: 48,922.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,129.50 : 88,498.08 = 35,451 : x
  2. Step 2: Convert to fraction form
    64,129.50/88,498.08 = 35,451/x
  3. Step 3: Cross multiply
    64,129.50x = 88,498.08 × 35,451
  4. Step 4: Simplify right side
    64,129.50x = 3,137,345,434.08
  5. Step 5: Solve for x
    x = 3,137,345,434.08/64,129.50
  6. Step 6: Final answer
    x = 48,922.03

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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.