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Finding the Fourth Proportional to 2,554.81, 3,834.12 and 1,898.20

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Solution

The fourth proportional to 2,554.81, 3,834.12 and 1,898.20 is: 2,848.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,554.81 : 3,834.12 = 1,898.20 : x
  2. Step 2: Convert to fraction form
    2,554.81/3,834.12 = 1,898.20/x
  3. Step 3: Cross multiply
    2,554.81x = 3,834.12 × 1,898.20
  4. Step 4: Simplify right side
    2,554.81x = 7,277,926.58
  5. Step 5: Solve for x
    x = 7,277,926.58/2,554.81
  6. Step 6: Final answer
    x = 2,848.72

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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.