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Finding the Fourth Proportional to 65,029.63, 89,739.52 and 36,348.49

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Solution

The fourth proportional to 65,029.63, 89,739.52 and 36,348.49 is: 50,160.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,029.63 : 89,739.52 = 36,348.49 : x
  2. Step 2: Convert to fraction form
    65,029.63/89,739.52 = 36,348.49/x
  3. Step 3: Cross multiply
    65,029.63x = 89,739.52 × 36,348.49
  4. Step 4: Simplify right side
    65,029.63x = 3,261,895,730.10
  5. Step 5: Solve for x
    x = 3,261,895,730.10/65,029.63
  6. Step 6: Final answer
    x = 50,160.15

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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.