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Finding the Fourth Proportional to 25,257.71, 37,860.14 and 8,611.91

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Solution

The fourth proportional to 25,257.71, 37,860.14 and 8,611.91 is: 12,908.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,257.71 : 37,860.14 = 8,611.91 : x
  2. Step 2: Convert to fraction form
    25,257.71/37,860.14 = 8,611.91/x
  3. Step 3: Cross multiply
    25,257.71x = 37,860.14 × 8,611.91
  4. Step 4: Simplify right side
    25,257.71x = 326,047,885.91
  5. Step 5: Solve for x
    x = 326,047,885.91/25,257.71
  6. Step 6: Final answer
    x = 12,908.85

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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.