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Finding the Fourth Proportional to 58,080.75, 80,175.99 and 39,243.39

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Solution

The fourth proportional to 58,080.75, 80,175.99 and 39,243.39 is: 54,172.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,080.75 : 80,175.99 = 39,243.39 : x
  2. Step 2: Convert to fraction form
    58,080.75/80,175.99 = 39,243.39/x
  3. Step 3: Cross multiply
    58,080.75x = 80,175.99 × 39,243.39
  4. Step 4: Simplify right side
    58,080.75x = 3,146,377,644.21
  5. Step 5: Solve for x
    x = 3,146,377,644.21/58,080.75
  6. Step 6: Final answer
    x = 54,172.47

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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.