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Finding the Fourth Proportional to 2,124.49, 3,187.19 and 737.87

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Solution

The fourth proportional to 2,124.49, 3,187.19 and 737.87 is: 1,106.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.49 : 3,187.19 = 737.87 : x
  2. Step 2: Convert to fraction form
    2,124.49/3,187.19 = 737.87/x
  3. Step 3: Cross multiply
    2,124.49x = 3,187.19 × 737.87
  4. Step 4: Simplify right side
    2,124.49x = 2,351,731.89
  5. Step 5: Solve for x
    x = 2,351,731.89/2,124.49
  6. Step 6: Final answer
    x = 1,106.96

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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.