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Finding the Fourth Proportional to 4,621.42, 6,922.95 and 4,243.42

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Solution

The fourth proportional to 4,621.42, 6,922.95 and 4,243.42 is: 6,356.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,621.42 : 6,922.95 = 4,243.42 : x
  2. Step 2: Convert to fraction form
    4,621.42/6,922.95 = 4,243.42/x
  3. Step 3: Cross multiply
    4,621.42x = 6,922.95 × 4,243.42
  4. Step 4: Simplify right side
    4,621.42x = 29,376,984.49
  5. Step 5: Solve for x
    x = 29,376,984.49/4,621.42
  6. Step 6: Final answer
    x = 6,356.70

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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.