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Finding the Fourth Proportional to 4,938.22, 7,407.13 and 1,240.48

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Solution

The fourth proportional to 4,938.22, 7,407.13 and 1,240.48 is: 1,860.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,938.22 : 7,407.13 = 1,240.48 : x
  2. Step 2: Convert to fraction form
    4,938.22/7,407.13 = 1,240.48/x
  3. Step 3: Cross multiply
    4,938.22x = 7,407.13 × 1,240.48
  4. Step 4: Simplify right side
    4,938.22x = 9,188,396.62
  5. Step 5: Solve for x
    x = 9,188,396.62/4,938.22
  6. Step 6: Final answer
    x = 1,860.67

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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.