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Finding the Fourth Proportional to 26,528.50, 36,611.13 and 15,350.50

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Solution

The fourth proportional to 26,528.50, 36,611.13 and 15,350.50 is: 21,184.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,528.50 : 36,611.13 = 15,350.50 : x
  2. Step 2: Convert to fraction form
    26,528.50/36,611.13 = 15,350.50/x
  3. Step 3: Cross multiply
    26,528.50x = 36,611.13 × 15,350.50
  4. Step 4: Simplify right side
    26,528.50x = 561,999,151.07
  5. Step 5: Solve for x
    x = 561,999,151.07/26,528.50
  6. Step 6: Final answer
    x = 21,184.73

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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.