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Finding the Fourth Proportional to 8,741.70, 12,063.60 and 5,205.06

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Solution

The fourth proportional to 8,741.70, 12,063.60 and 5,205.06 is: 7,183.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,741.70 : 12,063.60 = 5,205.06 : x
  2. Step 2: Convert to fraction form
    8,741.70/12,063.60 = 5,205.06/x
  3. Step 3: Cross multiply
    8,741.70x = 12,063.60 × 5,205.06
  4. Step 4: Simplify right side
    8,741.70x = 62,791,761.82
  5. Step 5: Solve for x
    x = 62,791,761.82/8,741.70
  6. Step 6: Final answer
    x = 7,183.01

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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.