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Finding the Fourth Proportional to 38,350.40, 57,491.40 and 14,971.40

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Solution

The fourth proportional to 38,350.40, 57,491.40 and 14,971.40 is: 22,443.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,350.40 : 57,491.40 = 14,971.40 : x
  2. Step 2: Convert to fraction form
    38,350.40/57,491.40 = 14,971.40/x
  3. Step 3: Cross multiply
    38,350.40x = 57,491.40 × 14,971.40
  4. Step 4: Simplify right side
    38,350.40x = 860,726,745.96
  5. Step 5: Solve for x
    x = 860,726,745.96/38,350.40
  6. Step 6: Final answer
    x = 22,443.75

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1.5x scale

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.