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Finding the Fourth Proportional to 6,717.87, 10,075.19 and 2,100.87

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Solution

The fourth proportional to 6,717.87, 10,075.19 and 2,100.87 is: 3,150.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,717.87 : 10,075.19 = 2,100.87 : x
  2. Step 2: Convert to fraction form
    6,717.87/10,075.19 = 2,100.87/x
  3. Step 3: Cross multiply
    6,717.87x = 10,075.19 × 2,100.87
  4. Step 4: Simplify right side
    6,717.87x = 21,166,653.91
  5. Step 5: Solve for x
    x = 21,166,653.91/6,717.87
  6. Step 6: Final answer
    x = 3,150.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.