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Finding the Fourth Proportional to 56,733.80, 85,100.70 and 19,336.10

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Solution

The fourth proportional to 56,733.80, 85,100.70 and 19,336.10 is: 29,004.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,733.80 : 85,100.70 = 19,336.10 : x
  2. Step 2: Convert to fraction form
    56,733.80/85,100.70 = 19,336.10/x
  3. Step 3: Cross multiply
    56,733.80x = 85,100.70 × 19,336.10
  4. Step 4: Simplify right side
    56,733.80x = 1,645,515,645.27
  5. Step 5: Solve for x
    x = 1,645,515,645.27/56,733.80
  6. Step 6: Final answer
    x = 29,004.15

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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.