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Finding the Fourth Proportional to 2,663.94, 3,676.05 and 1,485.08

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Solution

The fourth proportional to 2,663.94, 3,676.05 and 1,485.08 is: 2,049.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,663.94 : 3,676.05 = 1,485.08 : x
  2. Step 2: Convert to fraction form
    2,663.94/3,676.05 = 1,485.08/x
  3. Step 3: Cross multiply
    2,663.94x = 3,676.05 × 1,485.08
  4. Step 4: Simplify right side
    2,663.94x = 5,459,209.95
  5. Step 5: Solve for x
    x = 5,459,209.95/2,663.94
  6. Step 6: Final answer
    x = 2,049.30

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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.