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Finding the Fourth Proportional to 1,522.95, 2,101.68 and 850.75

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Solution

The fourth proportional to 1,522.95, 2,101.68 and 850.75 is: 1,174.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,522.95 : 2,101.68 = 850.75 : x
  2. Step 2: Convert to fraction form
    1,522.95/2,101.68 = 850.75/x
  3. Step 3: Cross multiply
    1,522.95x = 2,101.68 × 850.75
  4. Step 4: Simplify right side
    1,522.95x = 1,788,000.01
  5. Step 5: Solve for x
    x = 1,788,000.01/1,522.95
  6. Step 6: Final answer
    x = 1,174.04

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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.