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Finding the Fourth Proportional to 38,925, 58,394.76 and 12,626.31

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Solution

The fourth proportional to 38,925, 58,394.76 and 12,626.31 is: 18,941.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,925 : 58,394.76 = 12,626.31 : x
  2. Step 2: Convert to fraction form
    38,925/58,394.76 = 12,626.31/x
  3. Step 3: Cross multiply
    38,925x = 58,394.76 × 12,626.31
  4. Step 4: Simplify right side
    38,925x = 737,310,342.14
  5. Step 5: Solve for x
    x = 737,310,342.14/38,925
  6. Step 6: Final answer
    x = 18,941.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.