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Finding the Fourth Proportional to 3,330.88, 4,994.88 and 1,021.84

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Solution

The fourth proportional to 3,330.88, 4,994.88 and 1,021.84 is: 1,532.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,330.88 : 4,994.88 = 1,021.84 : x
  2. Step 2: Convert to fraction form
    3,330.88/4,994.88 = 1,021.84/x
  3. Step 3: Cross multiply
    3,330.88x = 4,994.88 × 1,021.84
  4. Step 4: Simplify right side
    3,330.88x = 5,103,968.18
  5. Step 5: Solve for x
    x = 5,103,968.18/3,330.88
  6. Step 6: Final answer
    x = 1,532.32

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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.