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Finding the Fourth Proportional to 47,291.56, 70,947.06 and 19,589.56

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Solution

The fourth proportional to 47,291.56, 70,947.06 and 19,589.56 is: 29,388.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,291.56 : 70,947.06 = 19,589.56 : x
  2. Step 2: Convert to fraction form
    47,291.56/70,947.06 = 19,589.56/x
  3. Step 3: Cross multiply
    47,291.56x = 70,947.06 × 19,589.56
  4. Step 4: Simplify right side
    47,291.56x = 1,389,821,688.69
  5. Step 5: Solve for x
    x = 1,389,821,688.69/47,291.56
  6. Step 6: Final answer
    x = 29,388.37

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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.