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Finding the Fourth Proportional to 36,815.25, 55,222.88 and 9,113.25

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Solution

The fourth proportional to 36,815.25, 55,222.88 and 9,113.25 is: 13,669.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,815.25 : 55,222.88 = 9,113.25 : x
  2. Step 2: Convert to fraction form
    36,815.25/55,222.88 = 9,113.25/x
  3. Step 3: Cross multiply
    36,815.25x = 55,222.88 × 9,113.25
  4. Step 4: Simplify right side
    36,815.25x = 503,259,865.59
  5. Step 5: Solve for x
    x = 503,259,865.59/36,815.25
  6. Step 6: Final answer
    x = 13,669.88

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1.5x scale

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.