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Finding the Fourth Proportional to 4,858.58, 7,288.36 and 1,936.20

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Solution

The fourth proportional to 4,858.58, 7,288.36 and 1,936.20 is: 2,904.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,858.58 : 7,288.36 = 1,936.20 : x
  2. Step 2: Convert to fraction form
    4,858.58/7,288.36 = 1,936.20/x
  3. Step 3: Cross multiply
    4,858.58x = 7,288.36 × 1,936.20
  4. Step 4: Simplify right side
    4,858.58x = 14,111,722.63
  5. Step 5: Solve for x
    x = 14,111,722.63/4,858.58
  6. Step 6: Final answer
    x = 2,904.50

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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.