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Finding the Fourth Proportional to 8,672.69, 11,968.11 and 4,895.88

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Solution

The fourth proportional to 8,672.69, 11,968.11 and 4,895.88 is: 6,756.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.69 : 11,968.11 = 4,895.88 : x
  2. Step 2: Convert to fraction form
    8,672.69/11,968.11 = 4,895.88/x
  3. Step 3: Cross multiply
    8,672.69x = 11,968.11 × 4,895.88
  4. Step 4: Simplify right side
    8,672.69x = 58,594,430.39
  5. Step 5: Solve for x
    x = 58,594,430.39/8,672.69
  6. Step 6: Final answer
    x = 6,756.20

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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.