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Finding the Fourth Proportional to 5,917.80, 8,898.30 and 4,967.40

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Solution

The fourth proportional to 5,917.80, 8,898.30 and 4,967.40 is: 7,469.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,917.80 : 8,898.30 = 4,967.40 : x
  2. Step 2: Convert to fraction form
    5,917.80/8,898.30 = 4,967.40/x
  3. Step 3: Cross multiply
    5,917.80x = 8,898.30 × 4,967.40
  4. Step 4: Simplify right side
    5,917.80x = 44,201,415.42
  5. Step 5: Solve for x
    x = 44,201,415.42/5,917.80
  6. Step 6: Final answer
    x = 7,469.23

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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.