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Finding the Fourth Proportional to 56,456.78, 84,696.15 and 17,011.94

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Solution

The fourth proportional to 56,456.78, 84,696.15 and 17,011.94 is: 25,521.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,456.78 : 84,696.15 = 17,011.94 : x
  2. Step 2: Convert to fraction form
    56,456.78/84,696.15 = 17,011.94/x
  3. Step 3: Cross multiply
    56,456.78x = 84,696.15 × 17,011.94
  4. Step 4: Simplify right side
    56,456.78x = 1,440,845,822.03
  5. Step 5: Solve for x
    x = 1,440,845,822.03/56,456.78
  6. Step 6: Final answer
    x = 25,521.22

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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.