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Finding the Fourth Proportional to 53,638.40, 80,486.40 and 22,476.80

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Solution

The fourth proportional to 53,638.40, 80,486.40 and 22,476.80 is: 33,727.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,638.40 : 80,486.40 = 22,476.80 : x
  2. Step 2: Convert to fraction form
    53,638.40/80,486.40 = 22,476.80/x
  3. Step 3: Cross multiply
    53,638.40x = 80,486.40 × 22,476.80
  4. Step 4: Simplify right side
    53,638.40x = 1,809,076,715.52
  5. Step 5: Solve for x
    x = 1,809,076,715.52/53,638.40
  6. Step 6: Final answer
    x = 33,727.27

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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.