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Finding the Fourth Proportional to 30,396.87, 41,945.45 and 17,650.31

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Solution

The fourth proportional to 30,396.87, 41,945.45 and 17,650.31 is: 24,356.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,396.87 : 41,945.45 = 17,650.31 : x
  2. Step 2: Convert to fraction form
    30,396.87/41,945.45 = 17,650.31/x
  3. Step 3: Cross multiply
    30,396.87x = 41,945.45 × 17,650.31
  4. Step 4: Simplify right side
    30,396.87x = 740,349,897.61
  5. Step 5: Solve for x
    x = 740,349,897.61/30,396.87
  6. Step 6: Final answer
    x = 24,356.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.