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Finding the Fourth Proportional to 11,590.80, 15,994.08 and 6,874.26

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Solution

The fourth proportional to 11,590.80, 15,994.08 and 6,874.26 is: 9,485.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,590.80 : 15,994.08 = 6,874.26 : x
  2. Step 2: Convert to fraction form
    11,590.80/15,994.08 = 6,874.26/x
  3. Step 3: Cross multiply
    11,590.80x = 15,994.08 × 6,874.26
  4. Step 4: Simplify right side
    11,590.80x = 109,947,464.38
  5. Step 5: Solve for x
    x = 109,947,464.38/11,590.80
  6. Step 6: Final answer
    x = 9,485.75

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Double scale
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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.