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Finding the Fourth Proportional to 8,559.61, 12,846.11 and 4,399.45

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Solution

The fourth proportional to 8,559.61, 12,846.11 and 4,399.45 is: 6,602.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,559.61 : 12,846.11 = 4,399.45 : x
  2. Step 2: Convert to fraction form
    8,559.61/12,846.11 = 4,399.45/x
  3. Step 3: Cross multiply
    8,559.61x = 12,846.11 × 4,399.45
  4. Step 4: Simplify right side
    8,559.61x = 56,515,818.64
  5. Step 5: Solve for x
    x = 56,515,818.64/8,559.61
  6. Step 6: Final answer
    x = 6,602.62

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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.