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Finding the Fourth Proportional to 29,608.34, 40,861.91 and 16,865.51

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Solution

The fourth proportional to 29,608.34, 40,861.91 and 16,865.51 is: 23,275.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,608.34 : 40,861.91 = 16,865.51 : x
  2. Step 2: Convert to fraction form
    29,608.34/40,861.91 = 16,865.51/x
  3. Step 3: Cross multiply
    29,608.34x = 40,861.91 × 16,865.51
  4. Step 4: Simplify right side
    29,608.34x = 689,156,789.58
  5. Step 5: Solve for x
    x = 689,156,789.58/29,608.34
  6. Step 6: Final answer
    x = 23,275.77

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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.