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Finding the Fourth Proportional to 14,368.96, 19,824.55 and 8,701.90

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Solution

The fourth proportional to 14,368.96, 19,824.55 and 8,701.90 is: 12,005.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,368.96 : 19,824.55 = 8,701.90 : x
  2. Step 2: Convert to fraction form
    14,368.96/19,824.55 = 8,701.90/x
  3. Step 3: Cross multiply
    14,368.96x = 19,824.55 × 8,701.90
  4. Step 4: Simplify right side
    14,368.96x = 172,511,251.65
  5. Step 5: Solve for x
    x = 172,511,251.65/14,368.96
  6. Step 6: Final answer
    x = 12,005.83

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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.