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Finding the Fourth Proportional to 50,880.66, 70,215.89 and 28,220.10

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Solution

The fourth proportional to 50,880.66, 70,215.89 and 28,220.10 is: 38,944.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,880.66 : 70,215.89 = 28,220.10 : x
  2. Step 2: Convert to fraction form
    50,880.66/70,215.89 = 28,220.10/x
  3. Step 3: Cross multiply
    50,880.66x = 70,215.89 × 28,220.10
  4. Step 4: Simplify right side
    50,880.66x = 1,981,499,437.39
  5. Step 5: Solve for x
    x = 1,981,499,437.39/50,880.66
  6. Step 6: Final answer
    x = 38,944.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.