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Finding the Fourth Proportional to 14,826.18, 20,455.97 and 8,859.32

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Solution

The fourth proportional to 14,826.18, 20,455.97 and 8,859.32 is: 12,223.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,826.18 : 20,455.97 = 8,859.32 : x
  2. Step 2: Convert to fraction form
    14,826.18/20,455.97 = 8,859.32/x
  3. Step 3: Cross multiply
    14,826.18x = 20,455.97 × 8,859.32
  4. Step 4: Simplify right side
    14,826.18x = 181,225,837.56
  5. Step 5: Solve for x
    x = 181,225,837.56/14,826.18
  6. Step 6: Final answer
    x = 12,223.37

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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.