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Finding the Fourth Proportional to 64,296.95, 96,441.71 and 19,317.33

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Solution

The fourth proportional to 64,296.95, 96,441.71 and 19,317.33 is: 28,974.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,296.95 : 96,441.71 = 19,317.33 : x
  2. Step 2: Convert to fraction form
    64,296.95/96,441.71 = 19,317.33/x
  3. Step 3: Cross multiply
    64,296.95x = 96,441.71 × 19,317.33
  4. Step 4: Simplify right side
    64,296.95x = 1,862,996,241.25
  5. Step 5: Solve for x
    x = 1,862,996,241.25/64,296.95
  6. Step 6: Final answer
    x = 28,974.88

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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.