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Finding the Fourth Proportional to 2,457.60, 3,393.54 and 1,867.38

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Solution

The fourth proportional to 2,457.60, 3,393.54 and 1,867.38 is: 2,578.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,457.60 : 3,393.54 = 1,867.38 : x
  2. Step 2: Convert to fraction form
    2,457.60/3,393.54 = 1,867.38/x
  3. Step 3: Cross multiply
    2,457.60x = 3,393.54 × 1,867.38
  4. Step 4: Simplify right side
    2,457.60x = 6,337,028.73
  5. Step 5: Solve for x
    x = 6,337,028.73/2,457.60
  6. Step 6: Final answer
    x = 2,578.54

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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.