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Finding the Fourth Proportional to 14,369.30, 19,829.45 and 8,081.68

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Solution

The fourth proportional to 14,369.30, 19,829.45 and 8,081.68 is: 11,152.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,369.30 : 19,829.45 = 8,081.68 : x
  2. Step 2: Convert to fraction form
    14,369.30/19,829.45 = 8,081.68/x
  3. Step 3: Cross multiply
    14,369.30x = 19,829.45 × 8,081.68
  4. Step 4: Simplify right side
    14,369.30x = 160,255,231.83
  5. Step 5: Solve for x
    x = 160,255,231.83/14,369.30
  6. Step 6: Final answer
    x = 11,152.61

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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.