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Finding the Fourth Proportional to 6,323.67, 8,724.92 and 4,085.64

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Solution

The fourth proportional to 6,323.67, 8,724.92 and 4,085.64 is: 5,637.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,323.67 : 8,724.92 = 4,085.64 : x
  2. Step 2: Convert to fraction form
    6,323.67/8,724.92 = 4,085.64/x
  3. Step 3: Cross multiply
    6,323.67x = 8,724.92 × 4,085.64
  4. Step 4: Simplify right side
    6,323.67x = 35,646,861.72
  5. Step 5: Solve for x
    x = 35,646,861.72/6,323.67
  6. Step 6: Final answer
    x = 5,637.05

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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.