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Finding the Fourth Proportional to 4,786.03, 7,179.35 and 1,275.98

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Solution

The fourth proportional to 4,786.03, 7,179.35 and 1,275.98 is: 1,914.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,786.03 : 7,179.35 = 1,275.98 : x
  2. Step 2: Convert to fraction form
    4,786.03/7,179.35 = 1,275.98/x
  3. Step 3: Cross multiply
    4,786.03x = 7,179.35 × 1,275.98
  4. Step 4: Simplify right side
    4,786.03x = 9,160,707.01
  5. Step 5: Solve for x
    x = 9,160,707.01/4,786.03
  6. Step 6: Final answer
    x = 1,914.05

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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.