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Finding the Fourth Proportional to 3,157.04, 4,736.32 and 965.77

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Solution

The fourth proportional to 3,157.04, 4,736.32 and 965.77 is: 1,448.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.04 : 4,736.32 = 965.77 : x
  2. Step 2: Convert to fraction form
    3,157.04/4,736.32 = 965.77/x
  3. Step 3: Cross multiply
    3,157.04x = 4,736.32 × 965.77
  4. Step 4: Simplify right side
    3,157.04x = 4,574,181.51
  5. Step 5: Solve for x
    x = 4,574,181.51/3,157.04
  6. Step 6: Final answer
    x = 1,448.88

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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.