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Finding the Fourth Proportional to 19,869.03, 29,785.01 and 6,712.20

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Solution

The fourth proportional to 19,869.03, 29,785.01 and 6,712.20 is: 10,062.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,869.03 : 29,785.01 = 6,712.20 : x
  2. Step 2: Convert to fraction form
    19,869.03/29,785.01 = 6,712.20/x
  3. Step 3: Cross multiply
    19,869.03x = 29,785.01 × 6,712.20
  4. Step 4: Simplify right side
    19,869.03x = 199,922,910.56
  5. Step 5: Solve for x
    x = 199,922,910.56/19,869.03
  6. Step 6: Final answer
    x = 10,062.04

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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.