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Finding the Fourth Proportional to 6,418.96, 8,839.92 and 5,894.08

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Solution

The fourth proportional to 6,418.96, 8,839.92 and 5,894.08 is: 8,117.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,418.96 : 8,839.92 = 5,894.08 : x
  2. Step 2: Convert to fraction form
    6,418.96/8,839.92 = 5,894.08/x
  3. Step 3: Cross multiply
    6,418.96x = 8,839.92 × 5,894.08
  4. Step 4: Simplify right side
    6,418.96x = 52,103,195.67
  5. Step 5: Solve for x
    x = 52,103,195.67/6,418.96
  6. Step 6: Final answer
    x = 8,117.08

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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.