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Finding the Fourth Proportional to 58,667.85, 87,967.89 and 18,678.96

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Solution

The fourth proportional to 58,667.85, 87,967.89 and 18,678.96 is: 28,007.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,667.85 : 87,967.89 = 18,678.96 : x
  2. Step 2: Convert to fraction form
    58,667.85/87,967.89 = 18,678.96/x
  3. Step 3: Cross multiply
    58,667.85x = 87,967.89 × 18,678.96
  4. Step 4: Simplify right side
    58,667.85x = 1,643,148,698.59
  5. Step 5: Solve for x
    x = 1,643,148,698.59/58,667.85
  6. Step 6: Final answer
    x = 28,007.65

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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.