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Finding the Fourth Proportional to 65,043.71, 89,762.06 and 36,748.79

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Solution

The fourth proportional to 65,043.71, 89,762.06 and 36,748.79 is: 50,714.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,043.71 : 89,762.06 = 36,748.79 : x
  2. Step 2: Convert to fraction form
    65,043.71/89,762.06 = 36,748.79/x
  3. Step 3: Cross multiply
    65,043.71x = 89,762.06 × 36,748.79
  4. Step 4: Simplify right side
    65,043.71x = 3,298,646,735.97
  5. Step 5: Solve for x
    x = 3,298,646,735.97/65,043.71
  6. Step 6: Final answer
    x = 50,714.31

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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.