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Finding the Fourth Proportional to 50,426.95, 75,640.80 and 18,844.15

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Solution

The fourth proportional to 50,426.95, 75,640.80 and 18,844.15 is: 28,266.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,426.95 : 75,640.80 = 18,844.15 : x
  2. Step 2: Convert to fraction form
    50,426.95/75,640.80 = 18,844.15/x
  3. Step 3: Cross multiply
    50,426.95x = 75,640.80 × 18,844.15
  4. Step 4: Simplify right side
    50,426.95x = 1,425,386,581.32
  5. Step 5: Solve for x
    x = 1,425,386,581.32/50,426.95
  6. Step 6: Final answer
    x = 28,266.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.