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Finding the Fourth Proportional to 4,894.40, 7,330.35 and 4,019.60

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Solution

The fourth proportional to 4,894.40, 7,330.35 and 4,019.60 is: 6,020.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,894.40 : 7,330.35 = 4,019.60 : x
  2. Step 2: Convert to fraction form
    4,894.40/7,330.35 = 4,019.60/x
  3. Step 3: Cross multiply
    4,894.40x = 7,330.35 × 4,019.60
  4. Step 4: Simplify right side
    4,894.40x = 29,465,074.86
  5. Step 5: Solve for x
    x = 29,465,074.86/4,894.40
  6. Step 6: Final answer
    x = 6,020.16

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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.