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Finding the Fourth Proportional to 14,631.61, 21,901.92 and 7,951.42

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Solution

The fourth proportional to 14,631.61, 21,901.92 and 7,951.42 is: 11,902.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,631.61 : 21,901.92 = 7,951.42 : x
  2. Step 2: Convert to fraction form
    14,631.61/21,901.92 = 7,951.42/x
  3. Step 3: Cross multiply
    14,631.61x = 21,901.92 × 7,951.42
  4. Step 4: Simplify right side
    14,631.61x = 174,151,364.73
  5. Step 5: Solve for x
    x = 174,151,364.73/14,631.61
  6. Step 6: Final answer
    x = 11,902.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.