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Finding the Fourth Proportional to 14,818.01, 20,448.72 and 8,103.65

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Solution

The fourth proportional to 14,818.01, 20,448.72 and 8,103.65 is: 11,182.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,818.01 : 20,448.72 = 8,103.65 : x
  2. Step 2: Convert to fraction form
    14,818.01/20,448.72 = 8,103.65/x
  3. Step 3: Cross multiply
    14,818.01x = 20,448.72 × 8,103.65
  4. Step 4: Simplify right side
    14,818.01x = 165,709,167.58
  5. Step 5: Solve for x
    x = 165,709,167.58/14,818.01
  6. Step 6: Final answer
    x = 11,182.96

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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.