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Finding the Fourth Proportional to 5,269.69, 7,904.54 and 2,148.99

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Solution

The fourth proportional to 5,269.69, 7,904.54 and 2,148.99 is: 3,223.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,269.69 : 7,904.54 = 2,148.99 : x
  2. Step 2: Convert to fraction form
    5,269.69/7,904.54 = 2,148.99/x
  3. Step 3: Cross multiply
    5,269.69x = 7,904.54 × 2,148.99
  4. Step 4: Simplify right side
    5,269.69x = 16,986,777.41
  5. Step 5: Solve for x
    x = 16,986,777.41/5,269.69
  6. Step 6: Final answer
    x = 3,223.49

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Similar ratio
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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.