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Finding the Fourth Proportional to 8,456.03, 11,669.18 and 4,679.13

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Solution

The fourth proportional to 8,456.03, 11,669.18 and 4,679.13 is: 6,457.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,456.03 : 11,669.18 = 4,679.13 : x
  2. Step 2: Convert to fraction form
    8,456.03/11,669.18 = 4,679.13/x
  3. Step 3: Cross multiply
    8,456.03x = 11,669.18 × 4,679.13
  4. Step 4: Simplify right side
    8,456.03x = 54,601,621.91
  5. Step 5: Solve for x
    x = 54,601,621.91/8,456.03
  6. Step 6: Final answer
    x = 6,457.12

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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.