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Finding the Fourth Proportional to 54,636.30, 81,990.90 and 25,038.90

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Solution

The fourth proportional to 54,636.30, 81,990.90 and 25,038.90 is: 37,575.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,636.30 : 81,990.90 = 25,038.90 : x
  2. Step 2: Convert to fraction form
    54,636.30/81,990.90 = 25,038.90/x
  3. Step 3: Cross multiply
    54,636.30x = 81,990.90 × 25,038.90
  4. Step 4: Simplify right side
    54,636.30x = 2,052,961,946.01
  5. Step 5: Solve for x
    x = 2,052,961,946.01/54,636.30
  6. Step 6: Final answer
    x = 37,575.05

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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.