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Finding the Fourth Proportional to 8,701.43, 12,007.98 and 4,722.48

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Solution

The fourth proportional to 8,701.43, 12,007.98 and 4,722.48 is: 6,517.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,701.43 : 12,007.98 = 4,722.48 : x
  2. Step 2: Convert to fraction form
    8,701.43/12,007.98 = 4,722.48/x
  3. Step 3: Cross multiply
    8,701.43x = 12,007.98 × 4,722.48
  4. Step 4: Simplify right side
    8,701.43x = 56,707,445.39
  5. Step 5: Solve for x
    x = 56,707,445.39/8,701.43
  6. Step 6: Final answer
    x = 6,517.03

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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.