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Finding the Fourth Proportional to 64,603.85, 96,924.60 and 39,659.90

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Solution

The fourth proportional to 64,603.85, 96,924.60 and 39,659.90 is: 59,501.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,603.85 : 96,924.60 = 39,659.90 : x
  2. Step 2: Convert to fraction form
    64,603.85/96,924.60 = 39,659.90/x
  3. Step 3: Cross multiply
    64,603.85x = 96,924.60 × 39,659.90
  4. Step 4: Simplify right side
    64,603.85x = 3,844,019,943.54
  5. Step 5: Solve for x
    x = 3,844,019,943.54/64,603.85
  6. Step 6: Final answer
    x = 59,501.41

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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.