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Finding the Fourth Proportional to 65,114.48, 89,855.28 and 36,819.44

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Solution

The fourth proportional to 65,114.48, 89,855.28 and 36,819.44 is: 50,809.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,114.48 : 89,855.28 = 36,819.44 : x
  2. Step 2: Convert to fraction form
    65,114.48/89,855.28 = 36,819.44/x
  3. Step 3: Cross multiply
    65,114.48x = 89,855.28 × 36,819.44
  4. Step 4: Simplify right side
    65,114.48x = 3,308,421,090.64
  5. Step 5: Solve for x
    x = 3,308,421,090.64/65,114.48
  6. Step 6: Final answer
    x = 50,809.30

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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.