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Finding the Fourth Proportional to 7,073.70, 10,603.55 and 3,127.10

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Solution

The fourth proportional to 7,073.70, 10,603.55 and 3,127.10 is: 4,687.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,073.70 : 10,603.55 = 3,127.10 : x
  2. Step 2: Convert to fraction form
    7,073.70/10,603.55 = 3,127.10/x
  3. Step 3: Cross multiply
    7,073.70x = 10,603.55 × 3,127.10
  4. Step 4: Simplify right side
    7,073.70x = 33,158,361.21
  5. Step 5: Solve for x
    x = 33,158,361.21/7,073.70
  6. Step 6: Final answer
    x = 4,687.56

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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.