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Finding the Fourth Proportional to 4,958.55, 7,443.90 and 4,922.10

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Solution

The fourth proportional to 4,958.55, 7,443.90 and 4,922.10 is: 7,389.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,958.55 : 7,443.90 = 4,922.10 : x
  2. Step 2: Convert to fraction form
    4,958.55/7,443.90 = 4,922.10/x
  3. Step 3: Cross multiply
    4,958.55x = 7,443.90 × 4,922.10
  4. Step 4: Simplify right side
    4,958.55x = 36,639,620.19
  5. Step 5: Solve for x
    x = 36,639,620.19/4,958.55
  6. Step 6: Final answer
    x = 7,389.18

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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.