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Finding the Fourth Proportional to 11,679.55, 16,117.63 and 6,374.25

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Solution

The fourth proportional to 11,679.55, 16,117.63 and 6,374.25 is: 8,796.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,679.55 : 16,117.63 = 6,374.25 : x
  2. Step 2: Convert to fraction form
    11,679.55/16,117.63 = 6,374.25/x
  3. Step 3: Cross multiply
    11,679.55x = 16,117.63 × 6,374.25
  4. Step 4: Simplify right side
    11,679.55x = 102,737,803.03
  5. Step 5: Solve for x
    x = 102,737,803.03/11,679.55
  6. Step 6: Final answer
    x = 8,796.38

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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.