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Finding the Fourth Proportional to 38,357.40, 52,941.02 and 22,445.76

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Solution

The fourth proportional to 38,357.40, 52,941.02 and 22,445.76 is: 30,979.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,357.40 : 52,941.02 = 22,445.76 : x
  2. Step 2: Convert to fraction form
    38,357.40/52,941.02 = 22,445.76/x
  3. Step 3: Cross multiply
    38,357.40x = 52,941.02 × 22,445.76
  4. Step 4: Simplify right side
    38,357.40x = 1,188,301,316.85
  5. Step 5: Solve for x
    x = 1,188,301,316.85/38,357.40
  6. Step 6: Final answer
    x = 30,979.71

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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.