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Finding the Fourth Proportional to 16,415.50, 22,646.08 and 9,696.54

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Solution

The fourth proportional to 16,415.50, 22,646.08 and 9,696.54 is: 13,376.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,415.50 : 22,646.08 = 9,696.54 : x
  2. Step 2: Convert to fraction form
    16,415.50/22,646.08 = 9,696.54/x
  3. Step 3: Cross multiply
    16,415.50x = 22,646.08 × 9,696.54
  4. Step 4: Simplify right side
    16,415.50x = 219,588,620.56
  5. Step 5: Solve for x
    x = 219,588,620.56/16,415.50
  6. Step 6: Final answer
    x = 13,376.91

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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.