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Finding the Fourth Proportional to 50,945.70, 70,305.22 and 28,284.74

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Solution

The fourth proportional to 50,945.70, 70,305.22 and 28,284.74 is: 39,033.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,945.70 : 70,305.22 = 28,284.74 : x
  2. Step 2: Convert to fraction form
    50,945.70/70,305.22 = 28,284.74/x
  3. Step 3: Cross multiply
    50,945.70x = 70,305.22 × 28,284.74
  4. Step 4: Simplify right side
    50,945.70x = 1,988,565,052.18
  5. Step 5: Solve for x
    x = 1,988,565,052.18/50,945.70
  6. Step 6: Final answer
    x = 39,033.03

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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.