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Finding the Fourth Proportional to 14,826.19, 20,456.79 and 8,856.69

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Solution

The fourth proportional to 14,826.19, 20,456.79 and 8,856.69 is: 12,220.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,826.19 : 20,456.79 = 8,856.69 : x
  2. Step 2: Convert to fraction form
    14,826.19/20,456.79 = 8,856.69/x
  3. Step 3: Cross multiply
    14,826.19x = 20,456.79 × 8,856.69
  4. Step 4: Simplify right side
    14,826.19x = 181,179,396.28
  5. Step 5: Solve for x
    x = 181,179,396.28/14,826.19
  6. Step 6: Final answer
    x = 12,220.23

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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.