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Finding the Fourth Proportional to 58,667.66, 88,001.44 and 21,218.96

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Solution

The fourth proportional to 58,667.66, 88,001.44 and 21,218.96 is: 31,828.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,667.66 : 88,001.44 = 21,218.96 : x
  2. Step 2: Convert to fraction form
    58,667.66/88,001.44 = 21,218.96/x
  3. Step 3: Cross multiply
    58,667.66x = 88,001.44 × 21,218.96
  4. Step 4: Simplify right side
    58,667.66x = 1,867,299,035.30
  5. Step 5: Solve for x
    x = 1,867,299,035.30/58,667.66
  6. Step 6: Final answer
    x = 31,828.42

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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.