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Finding the Fourth Proportional to 34,860.61, 48,108.36 and 18,946.09

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Solution

The fourth proportional to 34,860.61, 48,108.36 and 18,946.09 is: 26,145.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,860.61 : 48,108.36 = 18,946.09 : x
  2. Step 2: Convert to fraction form
    34,860.61/48,108.36 = 18,946.09/x
  3. Step 3: Cross multiply
    34,860.61x = 48,108.36 × 18,946.09
  4. Step 4: Simplify right side
    34,860.61x = 911,465,318.31
  5. Step 5: Solve for x
    x = 911,465,318.31/34,860.61
  6. Step 6: Final answer
    x = 26,145.99

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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.