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Finding the Fourth Proportional to 29,960.88, 41,347.02 and 18,631.68

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Solution

The fourth proportional to 29,960.88, 41,347.02 and 18,631.68 is: 25,712.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,960.88 : 41,347.02 = 18,631.68 : x
  2. Step 2: Convert to fraction form
    29,960.88/41,347.02 = 18,631.68/x
  3. Step 3: Cross multiply
    29,960.88x = 41,347.02 × 18,631.68
  4. Step 4: Simplify right side
    29,960.88x = 770,364,445.59
  5. Step 5: Solve for x
    x = 770,364,445.59/29,960.88
  6. Step 6: Final answer
    x = 25,712.34

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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.