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Finding the Fourth Proportional to 4,975.70, 6,866.48 and 2,737.72

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Solution

The fourth proportional to 4,975.70, 6,866.48 and 2,737.72 is: 3,778.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,975.70 : 6,866.48 = 2,737.72 : x
  2. Step 2: Convert to fraction form
    4,975.70/6,866.48 = 2,737.72/x
  3. Step 3: Cross multiply
    4,975.70x = 6,866.48 × 2,737.72
  4. Step 4: Simplify right side
    4,975.70x = 18,798,499.63
  5. Step 5: Solve for x
    x = 18,798,499.63/4,975.70
  6. Step 6: Final answer
    x = 3,778.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.