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Finding the Fourth Proportional to 19,902.92, 29,851.01 and 5,670.39

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Solution

The fourth proportional to 19,902.92, 29,851.01 and 5,670.39 is: 8,504.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,902.92 : 29,851.01 = 5,670.39 : x
  2. Step 2: Convert to fraction form
    19,902.92/29,851.01 = 5,670.39/x
  3. Step 3: Cross multiply
    19,902.92x = 29,851.01 × 5,670.39
  4. Step 4: Simplify right side
    19,902.92x = 169,266,837.43
  5. Step 5: Solve for x
    x = 169,266,837.43/19,902.92
  6. Step 6: Final answer
    x = 8,504.63

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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.