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Finding the Fourth Proportional to 19,833.70, 29,676.42 and 19,612.30

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Solution

The fourth proportional to 19,833.70, 29,676.42 and 19,612.30 is: 29,345.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,833.70 : 29,676.42 = 19,612.30 : x
  2. Step 2: Convert to fraction form
    19,833.70/29,676.42 = 19,612.30/x
  3. Step 3: Cross multiply
    19,833.70x = 29,676.42 × 19,612.30
  4. Step 4: Simplify right side
    19,833.70x = 582,022,851.97
  5. Step 5: Solve for x
    x = 582,022,851.97/19,833.70
  6. Step 6: Final answer
    x = 29,345.15

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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.