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Finding the Fourth Proportional to 16,236.95, 22,406.97 and 8,784.95

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Solution

The fourth proportional to 16,236.95, 22,406.97 and 8,784.95 is: 12,123.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,236.95 : 22,406.97 = 8,784.95 : x
  2. Step 2: Convert to fraction form
    16,236.95/22,406.97 = 8,784.95/x
  3. Step 3: Cross multiply
    16,236.95x = 22,406.97 × 8,784.95
  4. Step 4: Simplify right side
    16,236.95x = 196,843,999.07
  5. Step 5: Solve for x
    x = 196,843,999.07/16,236.95
  6. Step 6: Final answer
    x = 12,123.22

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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.