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Finding the Fourth Proportional to 33,153.60, 49,746.60 and 15,620.40

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Solution

The fourth proportional to 33,153.60, 49,746.60 and 15,620.40 is: 23,438.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,153.60 : 49,746.60 = 15,620.40 : x
  2. Step 2: Convert to fraction form
    33,153.60/49,746.60 = 15,620.40/x
  3. Step 3: Cross multiply
    33,153.60x = 49,746.60 × 15,620.40
  4. Step 4: Simplify right side
    33,153.60x = 777,061,790.64
  5. Step 5: Solve for x
    x = 777,061,790.64/33,153.60
  6. Step 6: Final answer
    x = 23,438.23

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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.