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Finding the Fourth Proportional to 15,592.58, 21,517.83 and 8,519.12

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Solution

The fourth proportional to 15,592.58, 21,517.83 and 8,519.12 is: 11,756.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,592.58 : 21,517.83 = 8,519.12 : x
  2. Step 2: Convert to fraction form
    15,592.58/21,517.83 = 8,519.12/x
  3. Step 3: Cross multiply
    15,592.58x = 21,517.83 × 8,519.12
  4. Step 4: Simplify right side
    15,592.58x = 183,312,868.32
  5. Step 5: Solve for x
    x = 183,312,868.32/15,592.58
  6. Step 6: Final answer
    x = 11,756.42

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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.