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Finding the Fourth Proportional to 2,992.85, 4,130.62 and 1,734.64

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Solution

The fourth proportional to 2,992.85, 4,130.62 and 1,734.64 is: 2,394.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992.85 : 4,130.62 = 1,734.64 : x
  2. Step 2: Convert to fraction form
    2,992.85/4,130.62 = 1,734.64/x
  3. Step 3: Cross multiply
    2,992.85x = 4,130.62 × 1,734.64
  4. Step 4: Simplify right side
    2,992.85x = 7,165,140.51
  5. Step 5: Solve for x
    x = 7,165,140.51/2,992.85
  6. Step 6: Final answer
    x = 2,394.09

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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.