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Finding the Fourth Proportional to 8,591.84, 11,856.50 and 5,055.26

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Solution

The fourth proportional to 8,591.84, 11,856.50 and 5,055.26 is: 6,976.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,591.84 : 11,856.50 = 5,055.26 : x
  2. Step 2: Convert to fraction form
    8,591.84/11,856.50 = 5,055.26/x
  3. Step 3: Cross multiply
    8,591.84x = 11,856.50 × 5,055.26
  4. Step 4: Simplify right side
    8,591.84x = 59,937,690.19
  5. Step 5: Solve for x
    x = 59,937,690.19/8,591.84
  6. Step 6: Final answer
    x = 6,976.12

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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.