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Finding the Fourth Proportional to 5,608.11, 7,739.40 and 3,484.82

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Solution

The fourth proportional to 5,608.11, 7,739.40 and 3,484.82 is: 4,809.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,608.11 : 7,739.40 = 3,484.82 : x
  2. Step 2: Convert to fraction form
    5,608.11/7,739.40 = 3,484.82/x
  3. Step 3: Cross multiply
    5,608.11x = 7,739.40 × 3,484.82
  4. Step 4: Simplify right side
    5,608.11x = 26,970,359.79
  5. Step 5: Solve for x
    x = 26,970,359.79/5,608.11
  6. Step 6: Final answer
    x = 4,809.17

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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.