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Finding the Fourth Proportional to 14,879.70, 22,283.10 and 7,079.40

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Solution

The fourth proportional to 14,879.70, 22,283.10 and 7,079.40 is: 10,601.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,879.70 : 22,283.10 = 7,079.40 : x
  2. Step 2: Convert to fraction form
    14,879.70/22,283.10 = 7,079.40/x
  3. Step 3: Cross multiply
    14,879.70x = 22,283.10 × 7,079.40
  4. Step 4: Simplify right side
    14,879.70x = 157,750,978.14
  5. Step 5: Solve for x
    x = 157,750,978.14/14,879.70
  6. Step 6: Final answer
    x = 10,601.76

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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.