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Finding the Fourth Proportional to 4,821.82, 6,648.12 and 4,063.66

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Solution

The fourth proportional to 4,821.82, 6,648.12 and 4,063.66 is: 5,602.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,821.82 : 6,648.12 = 4,063.66 : x
  2. Step 2: Convert to fraction form
    4,821.82/6,648.12 = 4,063.66/x
  3. Step 3: Cross multiply
    4,821.82x = 6,648.12 × 4,063.66
  4. Step 4: Simplify right side
    4,821.82x = 27,015,699.32
  5. Step 5: Solve for x
    x = 27,015,699.32/4,821.82
  6. Step 6: Final answer
    x = 5,602.80

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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.