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Finding the Fourth Proportional to 14,178.69, 19,557.99 and 8,869.14

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Solution

The fourth proportional to 14,178.69, 19,557.99 and 8,869.14 is: 12,234.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,178.69 : 19,557.99 = 8,869.14 : x
  2. Step 2: Convert to fraction form
    14,178.69/19,557.99 = 8,869.14/x
  3. Step 3: Cross multiply
    14,178.69x = 19,557.99 × 8,869.14
  4. Step 4: Simplify right side
    14,178.69x = 173,462,551.43
  5. Step 5: Solve for x
    x = 173,462,551.43/14,178.69
  6. Step 6: Final answer
    x = 12,234.03

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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.