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Finding the Fourth Proportional to 5,346.60, 8,019.90 and 4,698.60

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Solution

The fourth proportional to 5,346.60, 8,019.90 and 4,698.60 is: 7,047.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,346.60 : 8,019.90 = 4,698.60 : x
  2. Step 2: Convert to fraction form
    5,346.60/8,019.90 = 4,698.60/x
  3. Step 3: Cross multiply
    5,346.60x = 8,019.90 × 4,698.60
  4. Step 4: Simplify right side
    5,346.60x = 37,682,302.14
  5. Step 5: Solve for x
    x = 37,682,302.14/5,346.60
  6. Step 6: Final answer
    x = 7,047.90

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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.