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Finding the Fourth Proportional to 18,736.99, 28,102.92 and 6,256.74

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Solution

The fourth proportional to 18,736.99, 28,102.92 and 6,256.74 is: 9,384.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,736.99 : 28,102.92 = 6,256.74 : x
  2. Step 2: Convert to fraction form
    18,736.99/28,102.92 = 6,256.74/x
  3. Step 3: Cross multiply
    18,736.99x = 28,102.92 × 6,256.74
  4. Step 4: Simplify right side
    18,736.99x = 175,832,745.60
  5. Step 5: Solve for x
    x = 175,832,745.60/18,736.99
  6. Step 6: Final answer
    x = 9,384.26

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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.