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Finding the Fourth Proportional to 17,856.42, 24,642.11 and 9,790.83

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Solution

The fourth proportional to 17,856.42, 24,642.11 and 9,790.83 is: 13,511.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,856.42 : 24,642.11 = 9,790.83 : x
  2. Step 2: Convert to fraction form
    17,856.42/24,642.11 = 9,790.83/x
  3. Step 3: Cross multiply
    17,856.42x = 24,642.11 × 9,790.83
  4. Step 4: Simplify right side
    17,856.42x = 241,266,660.90
  5. Step 5: Solve for x
    x = 241,266,660.90/17,856.42
  6. Step 6: Final answer
    x = 13,511.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.