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Finding the Fourth Proportional to 3,977.01, 5,965.50 and 975.06

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Solution

The fourth proportional to 3,977.01, 5,965.50 and 975.06 is: 1,462.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.01 : 5,965.50 = 975.06 : x
  2. Step 2: Convert to fraction form
    3,977.01/5,965.50 = 975.06/x
  3. Step 3: Cross multiply
    3,977.01x = 5,965.50 × 975.06
  4. Step 4: Simplify right side
    3,977.01x = 5,816,720.43
  5. Step 5: Solve for x
    x = 5,816,720.43/3,977.01
  6. Step 6: Final answer
    x = 1,462.59

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Double scale
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Similar ratio
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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.