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Finding the Fourth Proportional to 64,965.60, 97,433.04 and 28,009.44

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Solution

The fourth proportional to 64,965.60, 97,433.04 and 28,009.44 is: 42,007.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,965.60 : 97,433.04 = 28,009.44 : x
  2. Step 2: Convert to fraction form
    64,965.60/97,433.04 = 28,009.44/x
  3. Step 3: Cross multiply
    64,965.60x = 97,433.04 × 28,009.44
  4. Step 4: Simplify right side
    64,965.60x = 2,729,044,887.90
  5. Step 5: Solve for x
    x = 2,729,044,887.90/64,965.60
  6. Step 6: Final answer
    x = 42,007.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.