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Finding the Fourth Proportional to 36,907.84, 55,610.84 and 30,478.06

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Solution

The fourth proportional to 36,907.84, 55,610.84 and 30,478.06 is: 45,922.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,907.84 : 55,610.84 = 30,478.06 : x
  2. Step 2: Convert to fraction form
    36,907.84/55,610.84 = 30,478.06/x
  3. Step 3: Cross multiply
    36,907.84x = 55,610.84 × 30,478.06
  4. Step 4: Simplify right side
    36,907.84x = 1,694,910,518.17
  5. Step 5: Solve for x
    x = 1,694,910,518.17/36,907.84
  6. Step 6: Final answer
    x = 45,922.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.