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Finding the Fourth Proportional to 4,964.22, 7,442.55 and 3,870.90

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Solution

The fourth proportional to 4,964.22, 7,442.55 and 3,870.90 is: 5,803.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,964.22 : 7,442.55 = 3,870.90 : x
  2. Step 2: Convert to fraction form
    4,964.22/7,442.55 = 3,870.90/x
  3. Step 3: Cross multiply
    4,964.22x = 7,442.55 × 3,870.90
  4. Step 4: Simplify right side
    4,964.22x = 28,809,366.80
  5. Step 5: Solve for x
    x = 28,809,366.80/4,964.22
  6. Step 6: Final answer
    x = 5,803.40

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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.