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Finding the Fourth Proportional to 8,673.12, 11,968.90 and 4,694.22

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Solution

The fourth proportional to 8,673.12, 11,968.90 and 4,694.22 is: 6,478.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,673.12 : 11,968.90 = 4,694.22 : x
  2. Step 2: Convert to fraction form
    8,673.12/11,968.90 = 4,694.22/x
  3. Step 3: Cross multiply
    8,673.12x = 11,968.90 × 4,694.22
  4. Step 4: Simplify right side
    8,673.12x = 56,184,649.76
  5. Step 5: Solve for x
    x = 56,184,649.76/8,673.12
  6. Step 6: Final answer
    x = 6,478.02

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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.