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Finding the Fourth Proportional to 5,324.74, 7,349.74 and 3,087.62

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Solution

The fourth proportional to 5,324.74, 7,349.74 and 3,087.62 is: 4,261.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,324.74 : 7,349.74 = 3,087.62 : x
  2. Step 2: Convert to fraction form
    5,324.74/7,349.74 = 3,087.62/x
  3. Step 3: Cross multiply
    5,324.74x = 7,349.74 × 3,087.62
  4. Step 4: Simplify right side
    5,324.74x = 22,693,187.31
  5. Step 5: Solve for x
    x = 22,693,187.31/5,324.74
  6. Step 6: Final answer
    x = 4,261.84

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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.