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Finding the Fourth Proportional to 5,373.81, 7,416.23 and 2,983.91

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Solution

The fourth proportional to 5,373.81, 7,416.23 and 2,983.91 is: 4,117.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,373.81 : 7,416.23 = 2,983.91 : x
  2. Step 2: Convert to fraction form
    5,373.81/7,416.23 = 2,983.91/x
  3. Step 3: Cross multiply
    5,373.81x = 7,416.23 × 2,983.91
  4. Step 4: Simplify right side
    5,373.81x = 22,129,310.86
  5. Step 5: Solve for x
    x = 22,129,310.86/5,373.81
  6. Step 6: Final answer
    x = 4,117.99

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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.