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Finding the Fourth Proportional to 2,354.55, 3,245.55 and 1,856.37

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Solution

The fourth proportional to 2,354.55, 3,245.55 and 1,856.37 is: 2,558.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,354.55 : 3,245.55 = 1,856.37 : x
  2. Step 2: Convert to fraction form
    2,354.55/3,245.55 = 1,856.37/x
  3. Step 3: Cross multiply
    2,354.55x = 3,245.55 × 1,856.37
  4. Step 4: Simplify right side
    2,354.55x = 6,024,941.65
  5. Step 5: Solve for x
    x = 6,024,941.65/2,354.55
  6. Step 6: Final answer
    x = 2,558.85

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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.