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Finding the Fourth Proportional to 37,588.88, 51,874.36 and 20,821.88

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Solution

The fourth proportional to 37,588.88, 51,874.36 and 20,821.88 is: 28,735.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,588.88 : 51,874.36 = 20,821.88 : x
  2. Step 2: Convert to fraction form
    37,588.88/51,874.36 = 20,821.88/x
  3. Step 3: Cross multiply
    37,588.88x = 51,874.36 × 20,821.88
  4. Step 4: Simplify right side
    37,588.88x = 1,080,121,699.00
  5. Step 5: Solve for x
    x = 1,080,121,699.00/37,588.88
  6. Step 6: Final answer
    x = 28,735.14

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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.