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Finding the Fourth Proportional to 2,900.70, 4,352.85 and 2,240.01

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Solution

The fourth proportional to 2,900.70, 4,352.85 and 2,240.01 is: 3,361.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,900.70 : 4,352.85 = 2,240.01 : x
  2. Step 2: Convert to fraction form
    2,900.70/4,352.85 = 2,240.01/x
  3. Step 3: Cross multiply
    2,900.70x = 4,352.85 × 2,240.01
  4. Step 4: Simplify right side
    2,900.70x = 9,750,427.53
  5. Step 5: Solve for x
    x = 9,750,427.53/2,900.70
  6. Step 6: Final answer
    x = 3,361.41

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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.