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Finding the Fourth Proportional to 50,807.97, 70,111.49 and 28,144.85

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Solution

The fourth proportional to 50,807.97, 70,111.49 and 28,144.85 is: 38,837.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,807.97 : 70,111.49 = 28,144.85 : x
  2. Step 2: Convert to fraction form
    50,807.97/70,111.49 = 28,144.85/x
  3. Step 3: Cross multiply
    50,807.97x = 70,111.49 × 28,144.85
  4. Step 4: Simplify right side
    50,807.97x = 1,973,276,878.04
  5. Step 5: Solve for x
    x = 1,973,276,878.04/50,807.97
  6. Step 6: Final answer
    x = 38,837.94

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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.