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Finding the Fourth Proportional to 21,503.70, 32,250.15 and 7,649.46

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Solution

The fourth proportional to 21,503.70, 32,250.15 and 7,649.46 is: 11,472.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,503.70 : 32,250.15 = 7,649.46 : x
  2. Step 2: Convert to fraction form
    21,503.70/32,250.15 = 7,649.46/x
  3. Step 3: Cross multiply
    21,503.70x = 32,250.15 × 7,649.46
  4. Step 4: Simplify right side
    21,503.70x = 246,696,232.42
  5. Step 5: Solve for x
    x = 246,696,232.42/21,503.70
  6. Step 6: Final answer
    x = 11,472.27

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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.