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Finding the Fourth Proportional to 5,817.99, 8,726.80 and 1,869.23

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Solution

The fourth proportional to 5,817.99, 8,726.80 and 1,869.23 is: 2,803.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,817.99 : 8,726.80 = 1,869.23 : x
  2. Step 2: Convert to fraction form
    5,817.99/8,726.80 = 1,869.23/x
  3. Step 3: Cross multiply
    5,817.99x = 8,726.80 × 1,869.23
  4. Step 4: Simplify right side
    5,817.99x = 16,312,397.15
  5. Step 5: Solve for x
    x = 16,312,397.15/5,817.99
  6. Step 6: Final answer
    x = 2,803.79

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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.