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Finding the Fourth Proportional to 36,012.60, 53,999.70 and 15,212.60

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Solution

The fourth proportional to 36,012.60, 53,999.70 and 15,212.60 is: 22,810.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,012.60 : 53,999.70 = 15,212.60 : x
  2. Step 2: Convert to fraction form
    36,012.60/53,999.70 = 15,212.60/x
  3. Step 3: Cross multiply
    36,012.60x = 53,999.70 × 15,212.60
  4. Step 4: Simplify right side
    36,012.60x = 821,475,836.22
  5. Step 5: Solve for x
    x = 821,475,836.22/36,012.60
  6. Step 6: Final answer
    x = 22,810.79

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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.