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Finding the Fourth Proportional to 27,480.40, 41,220.60 and 16,399.60

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Solution

The fourth proportional to 27,480.40, 41,220.60 and 16,399.60 is: 24,599.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,480.40 : 41,220.60 = 16,399.60 : x
  2. Step 2: Convert to fraction form
    27,480.40/41,220.60 = 16,399.60/x
  3. Step 3: Cross multiply
    27,480.40x = 41,220.60 × 16,399.60
  4. Step 4: Simplify right side
    27,480.40x = 676,001,351.76
  5. Step 5: Solve for x
    x = 676,001,351.76/27,480.40
  6. Step 6: Final answer
    x = 24,599.40

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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.