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Finding the Fourth Proportional to 2,135.60, 3,025.64 and 2,135.60

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Solution

The fourth proportional to 2,135.60, 3,025.64 and 2,135.60 is: 3,025.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.60 : 3,025.64 = 2,135.60 : x
  2. Step 2: Convert to fraction form
    2,135.60/3,025.64 = 2,135.60/x
  3. Step 3: Cross multiply
    2,135.60x = 3,025.64 × 2,135.60
  4. Step 4: Simplify right side
    2,135.60x = 6,461,556.78
  5. Step 5: Solve for x
    x = 6,461,556.78/2,135.60
  6. Step 6: Final answer
    x = 3,025.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.