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Finding the Fourth Proportional to 4,698.50, 7,050.18 and 2,390

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Solution

The fourth proportional to 4,698.50, 7,050.18 and 2,390 is: 3,586.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,698.50 : 7,050.18 = 2,390 : x
  2. Step 2: Convert to fraction form
    4,698.50/7,050.18 = 2,390/x
  3. Step 3: Cross multiply
    4,698.50x = 7,050.18 × 2,390
  4. Step 4: Simplify right side
    4,698.50x = 16,849,930.20
  5. Step 5: Solve for x
    x = 16,849,930.20/4,698.50
  6. Step 6: Final answer
    x = 3,586.24

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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.