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Finding the Fourth Proportional to 36,642.70, 54,964.05 and 23,520.70

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Solution

The fourth proportional to 36,642.70, 54,964.05 and 23,520.70 is: 35,281.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,642.70 : 54,964.05 = 23,520.70 : x
  2. Step 2: Convert to fraction form
    36,642.70/54,964.05 = 23,520.70/x
  3. Step 3: Cross multiply
    36,642.70x = 54,964.05 × 23,520.70
  4. Step 4: Simplify right side
    36,642.70x = 1,292,792,930.84
  5. Step 5: Solve for x
    x = 1,292,792,930.84/36,642.70
  6. Step 6: Final answer
    x = 35,281.05

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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.