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Finding the Fourth Proportional to 52,640.50, 78,966.06 and 17,100.34

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Solution

The fourth proportional to 52,640.50, 78,966.06 and 17,100.34 is: 25,652.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,640.50 : 78,966.06 = 17,100.34 : x
  2. Step 2: Convert to fraction form
    52,640.50/78,966.06 = 17,100.34/x
  3. Step 3: Cross multiply
    52,640.50x = 78,966.06 × 17,100.34
  4. Step 4: Simplify right side
    52,640.50x = 1,350,346,474.46
  5. Step 5: Solve for x
    x = 1,350,346,474.46/52,640.50
  6. Step 6: Final answer
    x = 25,652.23

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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.