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Finding the Fourth Proportional to 16,392.58, 22,619.05 and 9,317.63

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Solution

The fourth proportional to 16,392.58, 22,619.05 and 9,317.63 is: 12,856.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,392.58 : 22,619.05 = 9,317.63 : x
  2. Step 2: Convert to fraction form
    16,392.58/22,619.05 = 9,317.63/x
  3. Step 3: Cross multiply
    16,392.58x = 22,619.05 × 9,317.63
  4. Step 4: Simplify right side
    16,392.58x = 210,755,972.11
  5. Step 5: Solve for x
    x = 210,755,972.11/16,392.58
  6. Step 6: Final answer
    x = 12,856.79

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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.