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Finding the Fourth Proportional to 53,487.70, 80,231.55 and 33,702.10

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Solution

The fourth proportional to 53,487.70, 80,231.55 and 33,702.10 is: 50,553.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,487.70 : 80,231.55 = 33,702.10 : x
  2. Step 2: Convert to fraction form
    53,487.70/80,231.55 = 33,702.10/x
  3. Step 3: Cross multiply
    53,487.70x = 80,231.55 × 33,702.10
  4. Step 4: Simplify right side
    53,487.70x = 2,703,971,721.26
  5. Step 5: Solve for x
    x = 2,703,971,721.26/53,487.70
  6. Step 6: Final answer
    x = 50,553.15

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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.