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Finding the Fourth Proportional to 50,690.94, 69,947.39 and 28,026.87

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Solution

The fourth proportional to 50,690.94, 69,947.39 and 28,026.87 is: 38,673.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,690.94 : 69,947.39 = 28,026.87 : x
  2. Step 2: Convert to fraction form
    50,690.94/69,947.39 = 28,026.87/x
  3. Step 3: Cross multiply
    50,690.94x = 69,947.39 × 28,026.87
  4. Step 4: Simplify right side
    50,690.94x = 1,960,406,266.23
  5. Step 5: Solve for x
    x = 1,960,406,266.23/50,690.94
  6. Step 6: Final answer
    x = 38,673.70

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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.