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Finding the Fourth Proportional to 64,472.64, 96,696 and 17,719.44

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Solution

The fourth proportional to 64,472.64, 96,696 and 17,719.44 is: 26,575.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,472.64 : 96,696 = 17,719.44 : x
  2. Step 2: Convert to fraction form
    64,472.64/96,696 = 17,719.44/x
  3. Step 3: Cross multiply
    64,472.64x = 96,696 × 17,719.44
  4. Step 4: Simplify right side
    64,472.64x = 1,713,398,970.24
  5. Step 5: Solve for x
    x = 1,713,398,970.24/64,472.64
  6. Step 6: Final answer
    x = 26,575.60

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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.