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Finding the Fourth Proportional to 29,990.34, 41,388 and 17,247.66

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Solution

The fourth proportional to 29,990.34, 41,388 and 17,247.66 is: 23,802.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,990.34 : 41,388 = 17,247.66 : x
  2. Step 2: Convert to fraction form
    29,990.34/41,388 = 17,247.66/x
  3. Step 3: Cross multiply
    29,990.34x = 41,388 × 17,247.66
  4. Step 4: Simplify right side
    29,990.34x = 713,846,152.08
  5. Step 5: Solve for x
    x = 713,846,152.08/29,990.34
  6. Step 6: Final answer
    x = 23,802.54

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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.