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Finding the Fourth Proportional to 57,611.02, 86,453.44 and 28,012.71

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Solution

The fourth proportional to 57,611.02, 86,453.44 and 28,012.71 is: 42,037.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,611.02 : 86,453.44 = 28,012.71 : x
  2. Step 2: Convert to fraction form
    57,611.02/86,453.44 = 28,012.71/x
  3. Step 3: Cross multiply
    57,611.02x = 86,453.44 × 28,012.71
  4. Step 4: Simplify right side
    57,611.02x = 2,421,795,143.22
  5. Step 5: Solve for x
    x = 2,421,795,143.22/57,611.02
  6. Step 6: Final answer
    x = 42,037.01

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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.