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Finding the Fourth Proportional to 12,474.68, 18,697.44 and 6,926.72

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Solution

The fourth proportional to 12,474.68, 18,697.44 and 6,926.72 is: 10,381.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,474.68 : 18,697.44 = 6,926.72 : x
  2. Step 2: Convert to fraction form
    12,474.68/18,697.44 = 6,926.72/x
  3. Step 3: Cross multiply
    12,474.68x = 18,697.44 × 6,926.72
  4. Step 4: Simplify right side
    12,474.68x = 129,511,931.60
  5. Step 5: Solve for x
    x = 129,511,931.60/12,474.68
  6. Step 6: Final answer
    x = 10,381.98

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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.