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Finding the Fourth Proportional to 16,404.94, 22,640.08 and 9,330.94

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Solution

The fourth proportional to 16,404.94, 22,640.08 and 9,330.94 is: 12,877.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,404.94 : 22,640.08 = 9,330.94 : x
  2. Step 2: Convert to fraction form
    16,404.94/22,640.08 = 9,330.94/x
  3. Step 3: Cross multiply
    16,404.94x = 22,640.08 × 9,330.94
  4. Step 4: Simplify right side
    16,404.94x = 211,253,228.08
  5. Step 5: Solve for x
    x = 211,253,228.08/16,404.94
  6. Step 6: Final answer
    x = 12,877.42

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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.