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Finding the Fourth Proportional to 8,328.32, 11,487.71 and 4,968.54

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Solution

The fourth proportional to 8,328.32, 11,487.71 and 4,968.54 is: 6,853.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,328.32 : 11,487.71 = 4,968.54 : x
  2. Step 2: Convert to fraction form
    8,328.32/11,487.71 = 4,968.54/x
  3. Step 3: Cross multiply
    8,328.32x = 11,487.71 × 4,968.54
  4. Step 4: Simplify right side
    8,328.32x = 57,077,121.80
  5. Step 5: Solve for x
    x = 57,077,121.80/8,328.32
  6. Step 6: Final answer
    x = 6,853.38

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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.