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Finding the Fourth Proportional to 34,879.70, 48,132.67 and 18,963.60

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Solution

The fourth proportional to 34,879.70, 48,132.67 and 18,963.60 is: 26,169.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,879.70 : 48,132.67 = 18,963.60 : x
  2. Step 2: Convert to fraction form
    34,879.70/48,132.67 = 18,963.60/x
  3. Step 3: Cross multiply
    34,879.70x = 48,132.67 × 18,963.60
  4. Step 4: Simplify right side
    34,879.70x = 912,768,700.81
  5. Step 5: Solve for x
    x = 912,768,700.81/34,879.70
  6. Step 6: Final answer
    x = 26,169.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.