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Finding the Fourth Proportional to 39,003, 53,833.74 and 22,245.72

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Solution

The fourth proportional to 39,003, 53,833.74 and 22,245.72 is: 30,704.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,003 : 53,833.74 = 22,245.72 : x
  2. Step 2: Convert to fraction form
    39,003/53,833.74 = 22,245.72/x
  3. Step 3: Cross multiply
    39,003x = 53,833.74 × 22,245.72
  4. Step 4: Simplify right side
    39,003x = 1,197,570,306.59
  5. Step 5: Solve for x
    x = 1,197,570,306.59/39,003
  6. Step 6: Final answer
    x = 30,704.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.