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Finding the Fourth Proportional to 53,636.40, 80,454.60 and 18,564.40

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Solution

The fourth proportional to 53,636.40, 80,454.60 and 18,564.40 is: 27,846.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,636.40 : 80,454.60 = 18,564.40 : x
  2. Step 2: Convert to fraction form
    53,636.40/80,454.60 = 18,564.40/x
  3. Step 3: Cross multiply
    53,636.40x = 80,454.60 × 18,564.40
  4. Step 4: Simplify right side
    53,636.40x = 1,493,591,376.24
  5. Step 5: Solve for x
    x = 1,493,591,376.24/53,636.40
  6. Step 6: Final answer
    x = 27,846.60

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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.