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Finding the Fourth Proportional to 4,893.88, 6,750.21 and 3,124.69

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Solution

The fourth proportional to 4,893.88, 6,750.21 and 3,124.69 is: 4,309.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,893.88 : 6,750.21 = 3,124.69 : x
  2. Step 2: Convert to fraction form
    4,893.88/6,750.21 = 3,124.69/x
  3. Step 3: Cross multiply
    4,893.88x = 6,750.21 × 3,124.69
  4. Step 4: Simplify right side
    4,893.88x = 21,092,313.68
  5. Step 5: Solve for x
    x = 21,092,313.68/4,893.88
  6. Step 6: Final answer
    x = 4,309.94

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Half scale
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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.