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Finding the Fourth Proportional to 5,821.80, 8,726.52 and 4,185.63

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Solution

The fourth proportional to 5,821.80, 8,726.52 and 4,185.63 is: 6,274.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,821.80 : 8,726.52 = 4,185.63 : x
  2. Step 2: Convert to fraction form
    5,821.80/8,726.52 = 4,185.63/x
  3. Step 3: Cross multiply
    5,821.80x = 8,726.52 × 4,185.63
  4. Step 4: Simplify right side
    5,821.80x = 36,525,983.91
  5. Step 5: Solve for x
    x = 36,525,983.91/5,821.80
  6. Step 6: Final answer
    x = 6,274.00

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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.