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Finding the Fourth Proportional to 6,387.08, 8,814.20 and 3,733.97

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Solution

The fourth proportional to 6,387.08, 8,814.20 and 3,733.97 is: 5,152.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,387.08 : 8,814.20 = 3,733.97 : x
  2. Step 2: Convert to fraction form
    6,387.08/8,814.20 = 3,733.97/x
  3. Step 3: Cross multiply
    6,387.08x = 8,814.20 × 3,733.97
  4. Step 4: Simplify right side
    6,387.08x = 32,911,895.63
  5. Step 5: Solve for x
    x = 32,911,895.63/6,387.08
  6. Step 6: Final answer
    x = 5,152.89

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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.