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Finding the Fourth Proportional to 30,403.94, 41,953.15 and 16,973.33

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Solution

The fourth proportional to 30,403.94, 41,953.15 and 16,973.33 is: 23,420.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,403.94 : 41,953.15 = 16,973.33 : x
  2. Step 2: Convert to fraction form
    30,403.94/41,953.15 = 16,973.33/x
  3. Step 3: Cross multiply
    30,403.94x = 41,953.15 × 16,973.33
  4. Step 4: Simplify right side
    30,403.94x = 712,084,659.49
  5. Step 5: Solve for x
    x = 712,084,659.49/30,403.94
  6. Step 6: Final answer
    x = 23,420.80

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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.