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Finding the Fourth Proportional to 27,661.60, 41,446.80 and 15,954.40

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Solution

The fourth proportional to 27,661.60, 41,446.80 and 15,954.40 is: 23,905.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,661.60 : 41,446.80 = 15,954.40 : x
  2. Step 2: Convert to fraction form
    27,661.60/41,446.80 = 15,954.40/x
  3. Step 3: Cross multiply
    27,661.60x = 41,446.80 × 15,954.40
  4. Step 4: Simplify right side
    27,661.60x = 661,258,825.92
  5. Step 5: Solve for x
    x = 661,258,825.92/27,661.60
  6. Step 6: Final answer
    x = 23,905.30

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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.