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Finding the Fourth Proportional to 34,886.67, 48,143.27 and 18,971.25

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Solution

The fourth proportional to 34,886.67, 48,143.27 and 18,971.25 is: 26,180.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,886.67 : 48,143.27 = 18,971.25 : x
  2. Step 2: Convert to fraction form
    34,886.67/48,143.27 = 18,971.25/x
  3. Step 3: Cross multiply
    34,886.67x = 48,143.27 × 18,971.25
  4. Step 4: Simplify right side
    34,886.67x = 913,337,916.13
  5. Step 5: Solve for x
    x = 913,337,916.13/34,886.67
  6. Step 6: Final answer
    x = 26,180.14

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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.