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Finding the Fourth Proportional to 64,172.66, 96,263.84 and 17,424.86

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Solution

The fourth proportional to 64,172.66, 96,263.84 and 17,424.86 is: 26,138.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,172.66 : 96,263.84 = 17,424.86 : x
  2. Step 2: Convert to fraction form
    64,172.66/96,263.84 = 17,424.86/x
  3. Step 3: Cross multiply
    64,172.66x = 96,263.84 × 17,424.86
  4. Step 4: Simplify right side
    64,172.66x = 1,677,383,497.31
  5. Step 5: Solve for x
    x = 1,677,383,497.31/64,172.66
  6. Step 6: Final answer
    x = 26,138.60

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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.