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Finding the Fourth Proportional to 6,240.90, 8,612.44 and 3,446.40

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Solution

The fourth proportional to 6,240.90, 8,612.44 and 3,446.40 is: 4,756.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,240.90 : 8,612.44 = 3,446.40 : x
  2. Step 2: Convert to fraction form
    6,240.90/8,612.44 = 3,446.40/x
  3. Step 3: Cross multiply
    6,240.90x = 8,612.44 × 3,446.40
  4. Step 4: Simplify right side
    6,240.90x = 29,681,913.22
  5. Step 5: Solve for x
    x = 29,681,913.22/6,240.90
  6. Step 6: Final answer
    x = 4,756.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.