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Finding the Fourth Proportional to 55,788.57, 83,665.08 and 18,339.98

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Solution

The fourth proportional to 55,788.57, 83,665.08 and 18,339.98 is: 27,504.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,788.57 : 83,665.08 = 18,339.98 : x
  2. Step 2: Convert to fraction form
    55,788.57/83,665.08 = 18,339.98/x
  3. Step 3: Cross multiply
    55,788.57x = 83,665.08 × 18,339.98
  4. Step 4: Simplify right side
    55,788.57x = 1,534,415,475.57
  5. Step 5: Solve for x
    x = 1,534,415,475.57/55,788.57
  6. Step 6: Final answer
    x = 27,504.12

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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.