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Finding the Fourth Proportional to 21,997.68, 32,996.54 and 5,357.58

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Solution

The fourth proportional to 21,997.68, 32,996.54 and 5,357.58 is: 8,036.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,997.68 : 32,996.54 = 5,357.58 : x
  2. Step 2: Convert to fraction form
    21,997.68/32,996.54 = 5,357.58/x
  3. Step 3: Cross multiply
    21,997.68x = 32,996.54 × 5,357.58
  4. Step 4: Simplify right side
    21,997.68x = 176,781,602.77
  5. Step 5: Solve for x
    x = 176,781,602.77/21,997.68
  6. Step 6: Final answer
    x = 8,036.37

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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.