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Finding the Fourth Proportional to 50,910.81, 70,254.48 and 28,249.53

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Solution

The fourth proportional to 50,910.81, 70,254.48 and 28,249.53 is: 38,983.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,910.81 : 70,254.48 = 28,249.53 : x
  2. Step 2: Convert to fraction form
    50,910.81/70,254.48 = 28,249.53/x
  3. Step 3: Cross multiply
    50,910.81x = 70,254.48 × 28,249.53
  4. Step 4: Simplify right side
    50,910.81x = 1,984,656,040.39
  5. Step 5: Solve for x
    x = 1,984,656,040.39/50,910.81
  6. Step 6: Final answer
    x = 38,983.00

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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.