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Finding the Fourth Proportional to 55,114.80, 82,715.40 and 25,536.30

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Solution

The fourth proportional to 55,114.80, 82,715.40 and 25,536.30 is: 38,324.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,114.80 : 82,715.40 = 25,536.30 : x
  2. Step 2: Convert to fraction form
    55,114.80/82,715.40 = 25,536.30/x
  3. Step 3: Cross multiply
    55,114.80x = 82,715.40 × 25,536.30
  4. Step 4: Simplify right side
    55,114.80x = 2,112,245,269.02
  5. Step 5: Solve for x
    x = 2,112,245,269.02/55,114.80
  6. Step 6: Final answer
    x = 38,324.47

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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.