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Finding the Fourth Proportional to 2,361.66, 3,258.64 and 1,522.20

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Solution

The fourth proportional to 2,361.66, 3,258.64 and 1,522.20 is: 2,100.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,361.66 : 3,258.64 = 1,522.20 : x
  2. Step 2: Convert to fraction form
    2,361.66/3,258.64 = 1,522.20/x
  3. Step 3: Cross multiply
    2,361.66x = 3,258.64 × 1,522.20
  4. Step 4: Simplify right side
    2,361.66x = 4,960,301.81
  5. Step 5: Solve for x
    x = 4,960,301.81/2,361.66
  6. Step 6: Final answer
    x = 2,100.35

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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.