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Finding the Fourth Proportional to 4,829.78, 7,246.13 and 2,019.98

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Solution

The fourth proportional to 4,829.78, 7,246.13 and 2,019.98 is: 3,030.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,829.78 : 7,246.13 = 2,019.98 : x
  2. Step 2: Convert to fraction form
    4,829.78/7,246.13 = 2,019.98/x
  3. Step 3: Cross multiply
    4,829.78x = 7,246.13 × 2,019.98
  4. Step 4: Simplify right side
    4,829.78x = 14,637,037.68
  5. Step 5: Solve for x
    x = 14,637,037.68/4,829.78
  6. Step 6: Final answer
    x = 3,030.58

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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.