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Finding the Fourth Proportional to 64,593.74, 89,129.94 and 35,911.10

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Solution

The fourth proportional to 64,593.74, 89,129.94 and 35,911.10 is: 49,552.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,593.74 : 89,129.94 = 35,911.10 : x
  2. Step 2: Convert to fraction form
    64,593.74/89,129.94 = 35,911.10/x
  3. Step 3: Cross multiply
    64,593.74x = 89,129.94 × 35,911.10
  4. Step 4: Simplify right side
    64,593.74x = 3,200,754,188.33
  5. Step 5: Solve for x
    x = 3,200,754,188.33/64,593.74
  6. Step 6: Final answer
    x = 49,552.08

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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.