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Finding the Fourth Proportional to 6,411.62, 9,612.62 and 4,325.76

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Solution

The fourth proportional to 6,411.62, 9,612.62 and 4,325.76 is: 6,485.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,411.62 : 9,612.62 = 4,325.76 : x
  2. Step 2: Convert to fraction form
    6,411.62/9,612.62 = 4,325.76/x
  3. Step 3: Cross multiply
    6,411.62x = 9,612.62 × 4,325.76
  4. Step 4: Simplify right side
    6,411.62x = 41,581,887.09
  5. Step 5: Solve for x
    x = 41,581,887.09/6,411.62
  6. Step 6: Final answer
    x = 6,485.39

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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.