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Finding the Fourth Proportional to 21,950.60, 32,925.94 and 5,310.56

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Solution

The fourth proportional to 21,950.60, 32,925.94 and 5,310.56 is: 7,965.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,950.60 : 32,925.94 = 5,310.56 : x
  2. Step 2: Convert to fraction form
    21,950.60/32,925.94 = 5,310.56/x
  3. Step 3: Cross multiply
    21,950.60x = 32,925.94 × 5,310.56
  4. Step 4: Simplify right side
    21,950.60x = 174,855,179.93
  5. Step 5: Solve for x
    x = 174,855,179.93/21,950.60
  6. Step 6: Final answer
    x = 7,965.85

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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.