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Finding the Fourth Proportional to 64,601.61, 96,903.17 and 17,216.43

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Solution

The fourth proportional to 64,601.61, 96,903.17 and 17,216.43 is: 25,824.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,601.61 : 96,903.17 = 17,216.43 : x
  2. Step 2: Convert to fraction form
    64,601.61/96,903.17 = 17,216.43/x
  3. Step 3: Cross multiply
    64,601.61x = 96,903.17 × 17,216.43
  4. Step 4: Simplify right side
    64,601.61x = 1,668,326,557.00
  5. Step 5: Solve for x
    x = 1,668,326,557.00/64,601.61
  6. Step 6: Final answer
    x = 25,824.84

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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.