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Finding the Fourth Proportional to 38,045.96, 52,504.96 and 21,049.90

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Solution

The fourth proportional to 38,045.96, 52,504.96 and 21,049.90 is: 29,049.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,045.96 : 52,504.96 = 21,049.90 : x
  2. Step 2: Convert to fraction form
    38,045.96/52,504.96 = 21,049.90/x
  3. Step 3: Cross multiply
    38,045.96x = 52,504.96 × 21,049.90
  4. Step 4: Simplify right side
    38,045.96x = 1,105,224,157.50
  5. Step 5: Solve for x
    x = 1,105,224,157.50/38,045.96
  6. Step 6: Final answer
    x = 29,049.71

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Double scale
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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.