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Finding the Fourth Proportional to 4,941.79, 7,377.46 and 4,768.74

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Solution

The fourth proportional to 4,941.79, 7,377.46 and 4,768.74 is: 7,119.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,941.79 : 7,377.46 = 4,768.74 : x
  2. Step 2: Convert to fraction form
    4,941.79/7,377.46 = 4,768.74/x
  3. Step 3: Cross multiply
    4,941.79x = 7,377.46 × 4,768.74
  4. Step 4: Simplify right side
    4,941.79x = 35,181,176.68
  5. Step 5: Solve for x
    x = 35,181,176.68/4,941.79
  6. Step 6: Final answer
    x = 7,119.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.