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Finding the Fourth Proportional to 19,833.71, 29,754.51 and 6,689.84

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Solution

The fourth proportional to 19,833.71, 29,754.51 and 6,689.84 is: 10,036.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,833.71 : 29,754.51 = 6,689.84 : x
  2. Step 2: Convert to fraction form
    19,833.71/29,754.51 = 6,689.84/x
  3. Step 3: Cross multiply
    19,833.71x = 29,754.51 × 6,689.84
  4. Step 4: Simplify right side
    19,833.71x = 199,052,911.18
  5. Step 5: Solve for x
    x = 199,052,911.18/19,833.71
  6. Step 6: Final answer
    x = 10,036.09

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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.