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Finding the Fourth Proportional to 2,785.88, 4,174.95 and 1,551.44

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Solution

The fourth proportional to 2,785.88, 4,174.95 and 1,551.44 is: 2,325.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.88 : 4,174.95 = 1,551.44 : x
  2. Step 2: Convert to fraction form
    2,785.88/4,174.95 = 1,551.44/x
  3. Step 3: Cross multiply
    2,785.88x = 4,174.95 × 1,551.44
  4. Step 4: Simplify right side
    2,785.88x = 6,477,184.43
  5. Step 5: Solve for x
    x = 6,477,184.43/2,785.88
  6. Step 6: Final answer
    x = 2,325.00

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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.