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Finding the Fourth Proportional to 21,573.73, 32,359.11 and 5,778.73

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Solution

The fourth proportional to 21,573.73, 32,359.11 and 5,778.73 is: 8,667.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,573.73 : 32,359.11 = 5,778.73 : x
  2. Step 2: Convert to fraction form
    21,573.73/32,359.11 = 5,778.73/x
  3. Step 3: Cross multiply
    21,573.73x = 32,359.11 × 5,778.73
  4. Step 4: Simplify right side
    21,573.73x = 186,994,559.73
  5. Step 5: Solve for x
    x = 186,994,559.73/21,573.73
  6. Step 6: Final answer
    x = 8,667.70

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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.