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Finding the Fourth Proportional to 47,774.76, 71,670.76 and 19,679.48

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Solution

The fourth proportional to 47,774.76, 71,670.76 and 19,679.48 is: 29,522.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,774.76 : 71,670.76 = 19,679.48 : x
  2. Step 2: Convert to fraction form
    47,774.76/71,670.76 = 19,679.48/x
  3. Step 3: Cross multiply
    47,774.76x = 71,670.76 × 19,679.48
  4. Step 4: Simplify right side
    47,774.76x = 1,410,443,288.00
  5. Step 5: Solve for x
    x = 1,410,443,288.00/47,774.76
  6. Step 6: Final answer
    x = 29,522.77

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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.