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Finding the Fourth Proportional to 8,701.26, 12,007.74 and 4,975.26

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Solution

The fourth proportional to 8,701.26, 12,007.74 and 4,975.26 is: 6,865.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,701.26 : 12,007.74 = 4,975.26 : x
  2. Step 2: Convert to fraction form
    8,701.26/12,007.74 = 4,975.26/x
  3. Step 3: Cross multiply
    8,701.26x = 12,007.74 × 4,975.26
  4. Step 4: Simplify right side
    8,701.26x = 59,741,628.51
  5. Step 5: Solve for x
    x = 59,741,628.51/8,701.26
  6. Step 6: Final answer
    x = 6,865.86

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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.