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Finding the Fourth Proportional to 8,672.18, 11,967.62 and 4,895.51

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Solution

The fourth proportional to 8,672.18, 11,967.62 and 4,895.51 is: 6,755.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.18 : 11,967.62 = 4,895.51 : x
  2. Step 2: Convert to fraction form
    8,672.18/11,967.62 = 4,895.51/x
  3. Step 3: Cross multiply
    8,672.18x = 11,967.62 × 4,895.51
  4. Step 4: Simplify right side
    8,672.18x = 58,587,519.07
  5. Step 5: Solve for x
    x = 58,587,519.07/8,672.18
  6. Step 6: Final answer
    x = 6,755.80

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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.