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Finding the Fourth Proportional to 38,466.90, 57,711.15 and 18,746.10

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Solution

The fourth proportional to 38,466.90, 57,711.15 and 18,746.10 is: 28,124.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,466.90 : 57,711.15 = 18,746.10 : x
  2. Step 2: Convert to fraction form
    38,466.90/57,711.15 = 18,746.10/x
  3. Step 3: Cross multiply
    38,466.90x = 57,711.15 × 18,746.10
  4. Step 4: Simplify right side
    38,466.90x = 1,081,858,989.02
  5. Step 5: Solve for x
    x = 1,081,858,989.02/38,466.90
  6. Step 6: Final answer
    x = 28,124.41

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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.