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Finding the Fourth Proportional to 7,365.70, 11,048.55 and 3,207.70

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Solution

The fourth proportional to 7,365.70, 11,048.55 and 3,207.70 is: 4,811.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,365.70 : 11,048.55 = 3,207.70 : x
  2. Step 2: Convert to fraction form
    7,365.70/11,048.55 = 3,207.70/x
  3. Step 3: Cross multiply
    7,365.70x = 11,048.55 × 3,207.70
  4. Step 4: Simplify right side
    7,365.70x = 35,440,433.84
  5. Step 5: Solve for x
    x = 35,440,433.84/7,365.70
  6. Step 6: Final answer
    x = 4,811.55

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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.