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Finding the Fourth Proportional to 50,687.31, 69,946.43 and 28,024.86

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Solution

The fourth proportional to 50,687.31, 69,946.43 and 28,024.86 is: 38,673.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,687.31 : 69,946.43 = 28,024.86 : x
  2. Step 2: Convert to fraction form
    50,687.31/69,946.43 = 28,024.86/x
  3. Step 3: Cross multiply
    50,687.31x = 69,946.43 × 28,024.86
  4. Step 4: Simplify right side
    50,687.31x = 1,960,238,768.13
  5. Step 5: Solve for x
    x = 1,960,238,768.13/50,687.31
  6. Step 6: Final answer
    x = 38,673.17

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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.