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Finding the Fourth Proportional to 4,820.70, 7,231.05 and 4,448.10

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Solution

The fourth proportional to 4,820.70, 7,231.05 and 4,448.10 is: 6,672.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,820.70 : 7,231.05 = 4,448.10 : x
  2. Step 2: Convert to fraction form
    4,820.70/7,231.05 = 4,448.10/x
  3. Step 3: Cross multiply
    4,820.70x = 7,231.05 × 4,448.10
  4. Step 4: Simplify right side
    4,820.70x = 32,164,433.51
  5. Step 5: Solve for x
    x = 32,164,433.51/4,820.70
  6. Step 6: Final answer
    x = 6,672.15

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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.