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Finding the Fourth Proportional to 10,643.67, 14,687.15 and 6,168.83

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Solution

The fourth proportional to 10,643.67, 14,687.15 and 6,168.83 is: 8,512.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,643.67 : 14,687.15 = 6,168.83 : x
  2. Step 2: Convert to fraction form
    10,643.67/14,687.15 = 6,168.83/x
  3. Step 3: Cross multiply
    10,643.67x = 14,687.15 × 6,168.83
  4. Step 4: Simplify right side
    10,643.67x = 90,602,427.25
  5. Step 5: Solve for x
    x = 90,602,427.25/10,643.67
  6. Step 6: Final answer
    x = 8,512.33

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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.