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Finding the Fourth Proportional to 55,885.08, 83,825.44 and 18,949.08

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Solution

The fourth proportional to 55,885.08, 83,825.44 and 18,949.08 is: 28,422.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,885.08 : 83,825.44 = 18,949.08 : x
  2. Step 2: Convert to fraction form
    55,885.08/83,825.44 = 18,949.08/x
  3. Step 3: Cross multiply
    55,885.08x = 83,825.44 × 18,949.08
  4. Step 4: Simplify right side
    55,885.08x = 1,588,414,968.60
  5. Step 5: Solve for x
    x = 1,588,414,968.60/55,885.08
  6. Step 6: Final answer
    x = 28,422.88

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1.5x scale

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.