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Finding the Fourth Proportional to 33,621.70, 50,432.55 and 28,437.70

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Solution

The fourth proportional to 33,621.70, 50,432.55 and 28,437.70 is: 42,656.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,621.70 : 50,432.55 = 28,437.70 : x
  2. Step 2: Convert to fraction form
    33,621.70/50,432.55 = 28,437.70/x
  3. Step 3: Cross multiply
    33,621.70x = 50,432.55 × 28,437.70
  4. Step 4: Simplify right side
    33,621.70x = 1,434,185,727.14
  5. Step 5: Solve for x
    x = 1,434,185,727.14/33,621.70
  6. Step 6: Final answer
    x = 42,656.55

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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.