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Finding the Fourth Proportional to 64,635.68, 89,188.08 and 35,953.12

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Solution

The fourth proportional to 64,635.68, 89,188.08 and 35,953.12 is: 49,610.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,635.68 : 89,188.08 = 35,953.12 : x
  2. Step 2: Convert to fraction form
    64,635.68/89,188.08 = 35,953.12/x
  3. Step 3: Cross multiply
    64,635.68x = 89,188.08 × 35,953.12
  4. Step 4: Simplify right side
    64,635.68x = 3,206,589,742.81
  5. Step 5: Solve for x
    x = 3,206,589,742.81/64,635.68
  6. Step 6: Final answer
    x = 49,610.21

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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.