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Finding the Fourth Proportional to 1,954.96, 2,697.76 and 1,070.75

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Solution

The fourth proportional to 1,954.96, 2,697.76 and 1,070.75 is: 1,477.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954.96 : 2,697.76 = 1,070.75 : x
  2. Step 2: Convert to fraction form
    1,954.96/2,697.76 = 1,070.75/x
  3. Step 3: Cross multiply
    1,954.96x = 2,697.76 × 1,070.75
  4. Step 4: Simplify right side
    1,954.96x = 2,888,626.52
  5. Step 5: Solve for x
    x = 2,888,626.52/1,954.96
  6. Step 6: Final answer
    x = 1,477.59

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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.