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Finding the Fourth Proportional to 4,920.05, 7,365.44 and 4,913.57

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Solution

The fourth proportional to 4,920.05, 7,365.44 and 4,913.57 is: 7,355.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.05 : 7,365.44 = 4,913.57 : x
  2. Step 2: Convert to fraction form
    4,920.05/7,365.44 = 4,913.57/x
  3. Step 3: Cross multiply
    4,920.05x = 7,365.44 × 4,913.57
  4. Step 4: Simplify right side
    4,920.05x = 36,190,580.48
  5. Step 5: Solve for x
    x = 36,190,580.48/4,920.05
  6. Step 6: Final answer
    x = 7,355.74

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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.