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Finding the Fourth Proportional to 36,765.50, 55,060.50 and 21,150.32

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Solution

The fourth proportional to 36,765.50, 55,060.50 and 21,150.32 is: 31,675.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,765.50 : 55,060.50 = 21,150.32 : x
  2. Step 2: Convert to fraction form
    36,765.50/55,060.50 = 21,150.32/x
  3. Step 3: Cross multiply
    36,765.50x = 55,060.50 × 21,150.32
  4. Step 4: Simplify right side
    36,765.50x = 1,164,547,194.36
  5. Step 5: Solve for x
    x = 1,164,547,194.36/36,765.50
  6. Step 6: Final answer
    x = 31,675.00

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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.