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Finding the Fourth Proportional to 55,982.60, 83,949.60 and 18,528.20

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Solution

The fourth proportional to 55,982.60, 83,949.60 and 18,528.20 is: 27,784.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,982.60 : 83,949.60 = 18,528.20 : x
  2. Step 2: Convert to fraction form
    55,982.60/83,949.60 = 18,528.20/x
  3. Step 3: Cross multiply
    55,982.60x = 83,949.60 × 18,528.20
  4. Step 4: Simplify right side
    55,982.60x = 1,555,434,978.72
  5. Step 5: Solve for x
    x = 1,555,434,978.72/55,982.60
  6. Step 6: Final answer
    x = 27,784.26

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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.