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Finding the Fourth Proportional to 5,778.99, 8,661.87 and 2,818.98

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Solution

The fourth proportional to 5,778.99, 8,661.87 and 2,818.98 is: 4,225.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,778.99 : 8,661.87 = 2,818.98 : x
  2. Step 2: Convert to fraction form
    5,778.99/8,661.87 = 2,818.98/x
  3. Step 3: Cross multiply
    5,778.99x = 8,661.87 × 2,818.98
  4. Step 4: Simplify right side
    5,778.99x = 24,417,638.29
  5. Step 5: Solve for x
    x = 24,417,638.29/5,778.99
  6. Step 6: Final answer
    x = 4,225.24

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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.