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Finding the Fourth Proportional to 19,882.91, 29,824.37 and 9,345.19

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Solution

The fourth proportional to 19,882.91, 29,824.37 and 9,345.19 is: 14,017.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,882.91 : 29,824.37 = 9,345.19 : x
  2. Step 2: Convert to fraction form
    19,882.91/29,824.37 = 9,345.19/x
  3. Step 3: Cross multiply
    19,882.91x = 29,824.37 × 9,345.19
  4. Step 4: Simplify right side
    19,882.91x = 278,714,478.84
  5. Step 5: Solve for x
    x = 278,714,478.84/19,882.91
  6. Step 6: Final answer
    x = 14,017.79

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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.