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Finding the Fourth Proportional to 37,114.88, 55,670.88 and 12,156.80

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Solution

The fourth proportional to 37,114.88, 55,670.88 and 12,156.80 is: 18,234.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,114.88 : 55,670.88 = 12,156.80 : x
  2. Step 2: Convert to fraction form
    37,114.88/55,670.88 = 12,156.80/x
  3. Step 3: Cross multiply
    37,114.88x = 55,670.88 × 12,156.80
  4. Step 4: Simplify right side
    37,114.88x = 676,779,753.98
  5. Step 5: Solve for x
    x = 676,779,753.98/37,114.88
  6. Step 6: Final answer
    x = 18,234.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.