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Finding the Fourth Proportional to 15,064.99, 20,782.98 and 10,591.66

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Solution

The fourth proportional to 15,064.99, 20,782.98 and 10,591.66 is: 14,611.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,064.99 : 20,782.98 = 10,591.66 : x
  2. Step 2: Convert to fraction form
    15,064.99/20,782.98 = 10,591.66/x
  3. Step 3: Cross multiply
    15,064.99x = 20,782.98 × 10,591.66
  4. Step 4: Simplify right side
    15,064.99x = 220,126,283.93
  5. Step 5: Solve for x
    x = 220,126,283.93/15,064.99
  6. Step 6: Final answer
    x = 14,611.78

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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.