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Finding the Fourth Proportional to 2,525.60, 3,787.21 and 881.94

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Solution

The fourth proportional to 2,525.60, 3,787.21 and 881.94 is: 1,322.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,525.60 : 3,787.21 = 881.94 : x
  2. Step 2: Convert to fraction form
    2,525.60/3,787.21 = 881.94/x
  3. Step 3: Cross multiply
    2,525.60x = 3,787.21 × 881.94
  4. Step 4: Simplify right side
    2,525.60x = 3,340,091.99
  5. Step 5: Solve for x
    x = 3,340,091.99/2,525.60
  6. Step 6: Final answer
    x = 1,322.49

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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.