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Finding the Fourth Proportional to 8,577.26, 12,855.63 and 4,419.26

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Solution

The fourth proportional to 8,577.26, 12,855.63 and 4,419.26 is: 6,623.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,577.26 : 12,855.63 = 4,419.26 : x
  2. Step 2: Convert to fraction form
    8,577.26/12,855.63 = 4,419.26/x
  3. Step 3: Cross multiply
    8,577.26x = 12,855.63 × 4,419.26
  4. Step 4: Simplify right side
    8,577.26x = 56,812,371.43
  5. Step 5: Solve for x
    x = 56,812,371.43/8,577.26
  6. Step 6: Final answer
    x = 6,623.60

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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.