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Finding the Fourth Proportional to 64,617.81, 96,926.77 and 20,248.02

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Solution

The fourth proportional to 64,617.81, 96,926.77 and 20,248.02 is: 30,372.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,617.81 : 96,926.77 = 20,248.02 : x
  2. Step 2: Convert to fraction form
    64,617.81/96,926.77 = 20,248.02/x
  3. Step 3: Cross multiply
    64,617.81x = 96,926.77 × 20,248.02
  4. Step 4: Simplify right side
    64,617.81x = 1,962,575,177.50
  5. Step 5: Solve for x
    x = 1,962,575,177.50/64,617.81
  6. Step 6: Final answer
    x = 30,372.05

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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.