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Finding the Fourth Proportional to 47,291.78, 70,938.37 and 14,015.22

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Solution

The fourth proportional to 47,291.78, 70,938.37 and 14,015.22 is: 21,023.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,291.78 : 70,938.37 = 14,015.22 : x
  2. Step 2: Convert to fraction form
    47,291.78/70,938.37 = 14,015.22/x
  3. Step 3: Cross multiply
    47,291.78x = 70,938.37 × 14,015.22
  4. Step 4: Simplify right side
    47,291.78x = 994,216,861.99
  5. Step 5: Solve for x
    x = 994,216,861.99/47,291.78
  6. Step 6: Final answer
    x = 21,023.04

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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.