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Finding the Fourth Proportional to 36,763.50, 55,057.50 and 21,148.32

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Solution

The fourth proportional to 36,763.50, 55,057.50 and 21,148.32 is: 31,672.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,763.50 : 55,057.50 = 21,148.32 : x
  2. Step 2: Convert to fraction form
    36,763.50/55,057.50 = 21,148.32/x
  3. Step 3: Cross multiply
    36,763.50x = 55,057.50 × 21,148.32
  4. Step 4: Simplify right side
    36,763.50x = 1,164,373,628.40
  5. Step 5: Solve for x
    x = 1,164,373,628.40/36,763.50
  6. Step 6: Final answer
    x = 31,672.00

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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.