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Finding the Fourth Proportional to 34,580.87, 47,721.13 and 19,473.72

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Solution

The fourth proportional to 34,580.87, 47,721.13 and 19,473.72 is: 26,873.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,580.87 : 47,721.13 = 19,473.72 : x
  2. Step 2: Convert to fraction form
    34,580.87/47,721.13 = 19,473.72/x
  3. Step 3: Cross multiply
    34,580.87x = 47,721.13 × 19,473.72
  4. Step 4: Simplify right side
    34,580.87x = 929,307,805.60
  5. Step 5: Solve for x
    x = 929,307,805.60/34,580.87
  6. Step 6: Final answer
    x = 26,873.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.