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Finding the Fourth Proportional to 60,524.76, 90,787.14 and 18,975

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Solution

The fourth proportional to 60,524.76, 90,787.14 and 18,975 is: 28,462.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,524.76 : 90,787.14 = 18,975 : x
  2. Step 2: Convert to fraction form
    60,524.76/90,787.14 = 18,975/x
  3. Step 3: Cross multiply
    60,524.76x = 90,787.14 × 18,975
  4. Step 4: Simplify right side
    60,524.76x = 1,722,685,981.50
  5. Step 5: Solve for x
    x = 1,722,685,981.50/60,524.76
  6. Step 6: Final answer
    x = 28,462.50

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1.5x scale

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.