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Finding the Fourth Proportional to 56,728.70, 84,963.45 and 33,400.70

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Solution

The fourth proportional to 56,728.70, 84,963.45 and 33,400.70 is: 50,024.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,728.70 : 84,963.45 = 33,400.70 : x
  2. Step 2: Convert to fraction form
    56,728.70/84,963.45 = 33,400.70/x
  3. Step 3: Cross multiply
    56,728.70x = 84,963.45 × 33,400.70
  4. Step 4: Simplify right side
    56,728.70x = 2,837,838,704.42
  5. Step 5: Solve for x
    x = 2,837,838,704.42/56,728.70
  6. Step 6: Final answer
    x = 50,024.74

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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.