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Finding the Fourth Proportional to 57,803.49, 86,705.60 and 17,821.94

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Solution

The fourth proportional to 57,803.49, 86,705.60 and 17,821.94 is: 26,733.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,803.49 : 86,705.60 = 17,821.94 : x
  2. Step 2: Convert to fraction form
    57,803.49/86,705.60 = 17,821.94/x
  3. Step 3: Cross multiply
    57,803.49x = 86,705.60 × 17,821.94
  4. Step 4: Simplify right side
    57,803.49x = 1,545,261,478.23
  5. Step 5: Solve for x
    x = 1,545,261,478.23/57,803.49
  6. Step 6: Final answer
    x = 26,733.01

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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.