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Finding the Fourth Proportional to 57,996.90, 86,994.18 and 18,554.01

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Solution

The fourth proportional to 57,996.90, 86,994.18 and 18,554.01 is: 27,830.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,996.90 : 86,994.18 = 18,554.01 : x
  2. Step 2: Convert to fraction form
    57,996.90/86,994.18 = 18,554.01/x
  3. Step 3: Cross multiply
    57,996.90x = 86,994.18 × 18,554.01
  4. Step 4: Simplify right side
    57,996.90x = 1,614,090,885.66
  5. Step 5: Solve for x
    x = 1,614,090,885.66/57,996.90
  6. Step 6: Final answer
    x = 27,830.64

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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.