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Finding the Fourth Proportional to 16,636.53, 22,955.79 and 9,561.57

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Solution

The fourth proportional to 16,636.53, 22,955.79 and 9,561.57 is: 13,193.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,636.53 : 22,955.79 = 9,561.57 : x
  2. Step 2: Convert to fraction form
    16,636.53/22,955.79 = 9,561.57/x
  3. Step 3: Cross multiply
    16,636.53x = 22,955.79 × 9,561.57
  4. Step 4: Simplify right side
    16,636.53x = 219,493,392.99
  5. Step 5: Solve for x
    x = 219,493,392.99/16,636.53
  6. Step 6: Final answer
    x = 13,193.46

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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.