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Finding the Fourth Proportional to 50,690.70, 69,952.77 and 28,334.70

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Solution

The fourth proportional to 50,690.70, 69,952.77 and 28,334.70 is: 39,101.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,690.70 : 69,952.77 = 28,334.70 : x
  2. Step 2: Convert to fraction form
    50,690.70/69,952.77 = 28,334.70/x
  3. Step 3: Cross multiply
    50,690.70x = 69,952.77 × 28,334.70
  4. Step 4: Simplify right side
    50,690.70x = 1,982,090,752.12
  5. Step 5: Solve for x
    x = 1,982,090,752.12/50,690.70
  6. Step 6: Final answer
    x = 39,101.66

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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.