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Finding the Fourth Proportional to 3,606.13, 4,971.94 and 3,009.48

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Solution

The fourth proportional to 3,606.13, 4,971.94 and 3,009.48 is: 4,149.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,606.13 : 4,971.94 = 3,009.48 : x
  2. Step 2: Convert to fraction form
    3,606.13/4,971.94 = 3,009.48/x
  3. Step 3: Cross multiply
    3,606.13x = 4,971.94 × 3,009.48
  4. Step 4: Simplify right side
    3,606.13x = 14,962,953.99
  5. Step 5: Solve for x
    x = 14,962,953.99/3,606.13
  6. Step 6: Final answer
    x = 4,149.31

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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.