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Finding the Fourth Proportional to 5,782.90, 8,674.86 and 1,622.95

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Solution

The fourth proportional to 5,782.90, 8,674.86 and 1,622.95 is: 2,434.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,782.90 : 8,674.86 = 1,622.95 : x
  2. Step 2: Convert to fraction form
    5,782.90/8,674.86 = 1,622.95/x
  3. Step 3: Cross multiply
    5,782.90x = 8,674.86 × 1,622.95
  4. Step 4: Simplify right side
    5,782.90x = 14,078,864.04
  5. Step 5: Solve for x
    x = 14,078,864.04/5,782.90
  6. Step 6: Final answer
    x = 2,434.57

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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.