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Finding the Fourth Proportional to 35,153.92, 48,512.69 and 21,722.10

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Solution

The fourth proportional to 35,153.92, 48,512.69 and 21,722.10 is: 29,976.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,153.92 : 48,512.69 = 21,722.10 : x
  2. Step 2: Convert to fraction form
    35,153.92/48,512.69 = 21,722.10/x
  3. Step 3: Cross multiply
    35,153.92x = 48,512.69 × 21,722.10
  4. Step 4: Simplify right side
    35,153.92x = 1,053,797,503.45
  5. Step 5: Solve for x
    x = 1,053,797,503.45/35,153.92
  6. Step 6: Final answer
    x = 29,976.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.