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Finding the Fourth Proportional to 64,309.98, 88,747.38 and 36,015.60

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Solution

The fourth proportional to 64,309.98, 88,747.38 and 36,015.60 is: 49,701.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,309.98 : 88,747.38 = 36,015.60 : x
  2. Step 2: Convert to fraction form
    64,309.98/88,747.38 = 36,015.60/x
  3. Step 3: Cross multiply
    64,309.98x = 88,747.38 × 36,015.60
  4. Step 4: Simplify right side
    64,309.98x = 3,196,290,139.13
  5. Step 5: Solve for x
    x = 3,196,290,139.13/64,309.98
  6. Step 6: Final answer
    x = 49,701.31

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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.