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Finding the Fourth Proportional to 4,984.97, 7,478.82 and 2,021.58

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Solution

The fourth proportional to 4,984.97, 7,478.82 and 2,021.58 is: 3,032.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,984.97 : 7,478.82 = 2,021.58 : x
  2. Step 2: Convert to fraction form
    4,984.97/7,478.82 = 2,021.58/x
  3. Step 3: Cross multiply
    4,984.97x = 7,478.82 × 2,021.58
  4. Step 4: Simplify right side
    4,984.97x = 15,119,032.94
  5. Step 5: Solve for x
    x = 15,119,032.94/4,984.97
  6. Step 6: Final answer
    x = 3,032.93

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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.