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Finding the Fourth Proportional to 60,508.75, 90,767.91 and 18,392.50

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Solution

The fourth proportional to 60,508.75, 90,767.91 and 18,392.50 is: 27,590.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,508.75 : 90,767.91 = 18,392.50 : x
  2. Step 2: Convert to fraction form
    60,508.75/90,767.91 = 18,392.50/x
  3. Step 3: Cross multiply
    60,508.75x = 90,767.91 × 18,392.50
  4. Step 4: Simplify right side
    60,508.75x = 1,669,448,784.68
  5. Step 5: Solve for x
    x = 1,669,448,784.68/60,508.75
  6. Step 6: Final answer
    x = 27,590.20

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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.