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Finding the Fourth Proportional to 8,879.10, 12,085.44 and 8,879.10

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Solution

The fourth proportional to 8,879.10, 12,085.44 and 8,879.10 is: 12,085.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,879.10 : 12,085.44 = 8,879.10 : x
  2. Step 2: Convert to fraction form
    8,879.10/12,085.44 = 8,879.10/x
  3. Step 3: Cross multiply
    8,879.10x = 12,085.44 × 8,879.10
  4. Step 4: Simplify right side
    8,879.10x = 107,307,830.30
  5. Step 5: Solve for x
    x = 107,307,830.30/8,879.10
  6. Step 6: Final answer
    x = 12,085.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.