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Finding the Fourth Proportional to 1,749.84, 2,622.62 and 969.81

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Solution

The fourth proportional to 1,749.84, 2,622.62 and 969.81 is: 1,453.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,749.84 : 2,622.62 = 969.81 : x
  2. Step 2: Convert to fraction form
    1,749.84/2,622.62 = 969.81/x
  3. Step 3: Cross multiply
    1,749.84x = 2,622.62 × 969.81
  4. Step 4: Simplify right side
    1,749.84x = 2,543,438.25
  5. Step 5: Solve for x
    x = 2,543,438.25/1,749.84
  6. Step 6: Final answer
    x = 1,453.53

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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.