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Finding the Fourth Proportional to 15,593.10, 21,518.48 and 8,519.53

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Solution

The fourth proportional to 15,593.10, 21,518.48 and 8,519.53 is: 11,756.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,593.10 : 21,518.48 = 8,519.53 : x
  2. Step 2: Convert to fraction form
    15,593.10/21,518.48 = 8,519.53/x
  3. Step 3: Cross multiply
    15,593.10x = 21,518.48 × 8,519.53
  4. Step 4: Simplify right side
    15,593.10x = 183,327,185.72
  5. Step 5: Solve for x
    x = 183,327,185.72/15,593.10
  6. Step 6: Final answer
    x = 11,756.94

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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.