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Finding the Fourth Proportional to 64,568.90, 96,837.93 and 27,129.68

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Solution

The fourth proportional to 64,568.90, 96,837.93 and 27,129.68 is: 40,688.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,568.90 : 96,837.93 = 27,129.68 : x
  2. Step 2: Convert to fraction form
    64,568.90/96,837.93 = 27,129.68/x
  3. Step 3: Cross multiply
    64,568.90x = 96,837.93 × 27,129.68
  4. Step 4: Simplify right side
    64,568.90x = 2,627,182,052.76
  5. Step 5: Solve for x
    x = 2,627,182,052.76/64,568.90
  6. Step 6: Final answer
    x = 40,688.04

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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.