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Finding the Fourth Proportional to 36,487.74, 54,731.61 and 16,782.87

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Solution

The fourth proportional to 36,487.74, 54,731.61 and 16,782.87 is: 25,174.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,487.74 : 54,731.61 = 16,782.87 : x
  2. Step 2: Convert to fraction form
    36,487.74/54,731.61 = 16,782.87/x
  3. Step 3: Cross multiply
    36,487.74x = 54,731.61 × 16,782.87
  4. Step 4: Simplify right side
    36,487.74x = 918,553,495.52
  5. Step 5: Solve for x
    x = 918,553,495.52/36,487.74
  6. Step 6: Final answer
    x = 25,174.31

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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.