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Finding the Fourth Proportional to 58,006.59, 86,991.33 and 18,554.32

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Solution

The fourth proportional to 58,006.59, 86,991.33 and 18,554.32 is: 27,825.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,006.59 : 86,991.33 = 18,554.32 : x
  2. Step 2: Convert to fraction form
    58,006.59/86,991.33 = 18,554.32/x
  3. Step 3: Cross multiply
    58,006.59x = 86,991.33 × 18,554.32
  4. Step 4: Simplify right side
    58,006.59x = 1,614,064,974.05
  5. Step 5: Solve for x
    x = 1,614,064,974.05/58,006.59
  6. Step 6: Final answer
    x = 27,825.54

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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.