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Finding the Fourth Proportional to 62,255, 85,911.90 and 33,960.80

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Solution

The fourth proportional to 62,255, 85,911.90 and 33,960.80 is: 46,865.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,255 : 85,911.90 = 33,960.80 : x
  2. Step 2: Convert to fraction form
    62,255/85,911.90 = 33,960.80/x
  3. Step 3: Cross multiply
    62,255x = 85,911.90 × 33,960.80
  4. Step 4: Simplify right side
    62,255x = 2,917,636,853.52
  5. Step 5: Solve for x
    x = 2,917,636,853.52/62,255
  6. Step 6: Final answer
    x = 46,865.90

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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.