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Finding the Fourth Proportional to 34,646.91, 47,812.76 and 18,731.48

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Solution

The fourth proportional to 34,646.91, 47,812.76 and 18,731.48 is: 25,849.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,646.91 : 47,812.76 = 18,731.48 : x
  2. Step 2: Convert to fraction form
    34,646.91/47,812.76 = 18,731.48/x
  3. Step 3: Cross multiply
    34,646.91x = 47,812.76 × 18,731.48
  4. Step 4: Simplify right side
    34,646.91x = 895,603,424.96
  5. Step 5: Solve for x
    x = 895,603,424.96/34,646.91
  6. Step 6: Final answer
    x = 25,849.45

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