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Finding the Fourth Proportional to 29,449.50, 40,640.00 and 17,512.58

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Solution

The fourth proportional to 29,449.50, 40,640.00 and 17,512.58 is: 24,167.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,449.50 : 40,640.00 = 17,512.58 : x
  2. Step 2: Convert to fraction form
    29,449.50/40,640.00 = 17,512.58/x
  3. Step 3: Cross multiply
    29,449.50x = 40,640.00 × 17,512.58
  4. Step 4: Simplify right side
    29,449.50x = 711,710,960.44
  5. Step 5: Solve for x
    x = 711,710,960.44/29,449.50
  6. Step 6: Final answer
    x = 24,167.17

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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.