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Finding the Fourth Proportional to 14,339.17, 19,788.47 and 8,371.09

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Solution

The fourth proportional to 14,339.17, 19,788.47 and 8,371.09 is: 11,552.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,339.17 : 19,788.47 = 8,371.09 : x
  2. Step 2: Convert to fraction form
    14,339.17/19,788.47 = 8,371.09/x
  3. Step 3: Cross multiply
    14,339.17x = 19,788.47 × 8,371.09
  4. Step 4: Simplify right side
    14,339.17x = 165,651,063.33
  5. Step 5: Solve for x
    x = 165,651,063.33/14,339.17
  6. Step 6: Final answer
    x = 11,552.35

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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.