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Finding the Fourth Proportional to 4,620.83, 6,920.83 and 3,240.35

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Solution

The fourth proportional to 4,620.83, 6,920.83 and 3,240.35 is: 4,853.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,620.83 : 6,920.83 = 3,240.35 : x
  2. Step 2: Convert to fraction form
    4,620.83/6,920.83 = 3,240.35/x
  3. Step 3: Cross multiply
    4,620.83x = 6,920.83 × 3,240.35
  4. Step 4: Simplify right side
    4,620.83x = 22,425,897.47
  5. Step 5: Solve for x
    x = 22,425,897.47/4,620.83
  6. Step 6: Final answer
    x = 4,853.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.