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Finding the Fourth Proportional to 36,890.63, 55,336.14 and 9,188.63

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Solution

The fourth proportional to 36,890.63, 55,336.14 and 9,188.63 is: 13,782.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,890.63 : 55,336.14 = 9,188.63 : x
  2. Step 2: Convert to fraction form
    36,890.63/55,336.14 = 9,188.63/x
  3. Step 3: Cross multiply
    36,890.63x = 55,336.14 × 9,188.63
  4. Step 4: Simplify right side
    36,890.63x = 508,463,316.09
  5. Step 5: Solve for x
    x = 508,463,316.09/36,890.63
  6. Step 6: Final answer
    x = 13,782.99

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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.