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Finding the Fourth Proportional to 12,060.88, 16,652.84 and 8,711.12

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Solution

The fourth proportional to 12,060.88, 16,652.84 and 8,711.12 is: 12,027.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,060.88 : 16,652.84 = 8,711.12 : x
  2. Step 2: Convert to fraction form
    12,060.88/16,652.84 = 8,711.12/x
  3. Step 3: Cross multiply
    12,060.88x = 16,652.84 × 8,711.12
  4. Step 4: Simplify right side
    12,060.88x = 145,064,885.66
  5. Step 5: Solve for x
    x = 145,064,885.66/12,060.88
  6. Step 6: Final answer
    x = 12,027.72

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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.