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Finding the Fourth Proportional to 46,572.76, 69,867.78 and 15,408.28

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Solution

The fourth proportional to 46,572.76, 69,867.78 and 15,408.28 is: 23,115.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,572.76 : 69,867.78 = 15,408.28 : x
  2. Step 2: Convert to fraction form
    46,572.76/69,867.78 = 15,408.28/x
  3. Step 3: Cross multiply
    46,572.76x = 69,867.78 × 15,408.28
  4. Step 4: Simplify right side
    46,572.76x = 1,076,542,317.22
  5. Step 5: Solve for x
    x = 1,076,542,317.22/46,572.76
  6. Step 6: Final answer
    x = 23,115.28

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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.