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Finding the Fourth Proportional to 64,321.47, 96,365.57 and 62,921.79

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Solution

The fourth proportional to 64,321.47, 96,365.57 and 62,921.79 is: 94,268.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,321.47 : 96,365.57 = 62,921.79 : x
  2. Step 2: Convert to fraction form
    64,321.47/96,365.57 = 62,921.79/x
  3. Step 3: Cross multiply
    64,321.47x = 96,365.57 × 62,921.79
  4. Step 4: Simplify right side
    64,321.47x = 6,063,493,844.16
  5. Step 5: Solve for x
    x = 6,063,493,844.16/64,321.47
  6. Step 6: Final answer
    x = 94,268.58

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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.