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Finding the Fourth Proportional to 50,742.70, 70,053.08 and 30,604.66

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Solution

The fourth proportional to 50,742.70, 70,053.08 and 30,604.66 is: 42,251.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,742.70 : 70,053.08 = 30,604.66 : x
  2. Step 2: Convert to fraction form
    50,742.70/70,053.08 = 30,604.66/x
  3. Step 3: Cross multiply
    50,742.70x = 70,053.08 × 30,604.66
  4. Step 4: Simplify right side
    50,742.70x = 2,143,950,695.35
  5. Step 5: Solve for x
    x = 2,143,950,695.35/50,742.70
  6. Step 6: Final answer
    x = 42,251.41

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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.