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Finding the Fourth Proportional to 2,706.99, 4,060.49 and 1,247.16

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Solution

The fourth proportional to 2,706.99, 4,060.49 and 1,247.16 is: 1,870.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,706.99 : 4,060.49 = 1,247.16 : x
  2. Step 2: Convert to fraction form
    2,706.99/4,060.49 = 1,247.16/x
  3. Step 3: Cross multiply
    2,706.99x = 4,060.49 × 1,247.16
  4. Step 4: Simplify right side
    2,706.99x = 5,064,074.47
  5. Step 5: Solve for x
    x = 5,064,074.47/2,706.99
  6. Step 6: Final answer
    x = 1,870.74

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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.