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Finding the Fourth Proportional to 60,377.76, 90,566.64 and 18,828

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Solution

The fourth proportional to 60,377.76, 90,566.64 and 18,828 is: 28,242

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,377.76 : 90,566.64 = 18,828 : x
  2. Step 2: Convert to fraction form
    60,377.76/90,566.64 = 18,828/x
  3. Step 3: Cross multiply
    60,377.76x = 90,566.64 × 18,828
  4. Step 4: Simplify right side
    60,377.76x = 1,705,188,697.92
  5. Step 5: Solve for x
    x = 1,705,188,697.92/60,377.76
  6. Step 6: Final answer
    x = 28,242

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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.