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Finding the Fourth Proportional to 33,098, 45,714.24 and 21,900.56

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Solution

The fourth proportional to 33,098, 45,714.24 and 21,900.56 is: 30,248.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,098 : 45,714.24 = 21,900.56 : x
  2. Step 2: Convert to fraction form
    33,098/45,714.24 = 21,900.56/x
  3. Step 3: Cross multiply
    33,098x = 45,714.24 × 21,900.56
  4. Step 4: Simplify right side
    33,098x = 1,001,167,455.97
  5. Step 5: Solve for x
    x = 1,001,167,455.97/33,098
  6. Step 6: Final answer
    x = 30,248.58

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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.