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Finding the Fourth Proportional to 31,805.80, 47,714.10 and 17,010.70

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Solution

The fourth proportional to 31,805.80, 47,714.10 and 17,010.70 is: 25,518.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,805.80 : 47,714.10 = 17,010.70 : x
  2. Step 2: Convert to fraction form
    31,805.80/47,714.10 = 17,010.70/x
  3. Step 3: Cross multiply
    31,805.80x = 47,714.10 × 17,010.70
  4. Step 4: Simplify right side
    31,805.80x = 811,650,240.87
  5. Step 5: Solve for x
    x = 811,650,240.87/31,805.80
  6. Step 6: Final answer
    x = 25,518.94

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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.