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Finding the Fourth Proportional to 7,710.14, 10,639.99 and 4,173.34

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Solution

The fourth proportional to 7,710.14, 10,639.99 and 4,173.34 is: 5,759.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,710.14 : 10,639.99 = 4,173.34 : x
  2. Step 2: Convert to fraction form
    7,710.14/10,639.99 = 4,173.34/x
  3. Step 3: Cross multiply
    7,710.14x = 10,639.99 × 4,173.34
  4. Step 4: Simplify right side
    7,710.14x = 44,404,295.87
  5. Step 5: Solve for x
    x = 44,404,295.87/7,710.14
  6. Step 6: Final answer
    x = 5,759.21

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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.