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Finding the Fourth Proportional to 6,220.51, 8,584.91 and 4,645.87

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Solution

The fourth proportional to 6,220.51, 8,584.91 and 4,645.87 is: 6,411.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,220.51 : 8,584.91 = 4,645.87 : x
  2. Step 2: Convert to fraction form
    6,220.51/8,584.91 = 4,645.87/x
  3. Step 3: Cross multiply
    6,220.51x = 8,584.91 × 4,645.87
  4. Step 4: Simplify right side
    6,220.51x = 39,884,375.82
  5. Step 5: Solve for x
    x = 39,884,375.82/6,220.51
  6. Step 6: Final answer
    x = 6,411.75

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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.