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Finding the Fourth Proportional to 12,232.96, 16,881.48 and 6,643.96

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Solution

The fourth proportional to 12,232.96, 16,881.48 and 6,643.96 is: 9,168.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,232.96 : 16,881.48 = 6,643.96 : x
  2. Step 2: Convert to fraction form
    12,232.96/16,881.48 = 6,643.96/x
  3. Step 3: Cross multiply
    12,232.96x = 16,881.48 × 6,643.96
  4. Step 4: Simplify right side
    12,232.96x = 112,159,877.86
  5. Step 5: Solve for x
    x = 112,159,877.86/12,232.96
  6. Step 6: Final answer
    x = 9,168.66

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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.