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Finding the Fourth Proportional to 7,470.88, 10,309.21 and 4,327.27

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Solution

The fourth proportional to 7,470.88, 10,309.21 and 4,327.27 is: 5,971.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,470.88 : 10,309.21 = 4,327.27 : x
  2. Step 2: Convert to fraction form
    7,470.88/10,309.21 = 4,327.27/x
  3. Step 3: Cross multiply
    7,470.88x = 10,309.21 × 4,327.27
  4. Step 4: Simplify right side
    7,470.88x = 44,610,735.16
  5. Step 5: Solve for x
    x = 44,610,735.16/7,470.88
  6. Step 6: Final answer
    x = 5,971.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.