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Finding the Fourth Proportional to 33,708.64, 50,564.13 and 12,646.54

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Solution

The fourth proportional to 33,708.64, 50,564.13 and 12,646.54 is: 18,970.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,708.64 : 50,564.13 = 12,646.54 : x
  2. Step 2: Convert to fraction form
    33,708.64/50,564.13 = 12,646.54/x
  3. Step 3: Cross multiply
    33,708.64x = 50,564.13 × 12,646.54
  4. Step 4: Simplify right side
    33,708.64x = 639,461,292.61
  5. Step 5: Solve for x
    x = 639,461,292.61/33,708.64
  6. Step 6: Final answer
    x = 18,970.25

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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.