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Finding the Fourth Proportional to 50,873.55, 70,206.33 and 28,213.47

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Solution

The fourth proportional to 50,873.55, 70,206.33 and 28,213.47 is: 38,935.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,873.55 : 70,206.33 = 28,213.47 : x
  2. Step 2: Convert to fraction form
    50,873.55/70,206.33 = 28,213.47/x
  3. Step 3: Cross multiply
    50,873.55x = 70,206.33 × 28,213.47
  4. Step 4: Simplify right side
    50,873.55x = 1,980,764,185.27
  5. Step 5: Solve for x
    x = 1,980,764,185.27/50,873.55
  6. Step 6: Final answer
    x = 38,935.05

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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.