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Finding the Fourth Proportional to 8,590.90, 11,856.54 and 5,054.44

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Solution

The fourth proportional to 8,590.90, 11,856.54 and 5,054.44 is: 6,975.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,590.90 : 11,856.54 = 5,054.44 : x
  2. Step 2: Convert to fraction form
    8,590.90/11,856.54 = 5,054.44/x
  3. Step 3: Cross multiply
    8,590.90x = 11,856.54 × 5,054.44
  4. Step 4: Simplify right side
    8,590.90x = 59,928,170.04
  5. Step 5: Solve for x
    x = 59,928,170.04/8,590.90
  6. Step 6: Final answer
    x = 6,975.77

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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.