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Finding the Fourth Proportional to 76,021.76, 104,763.84 and 53,626.88

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Solution

The fourth proportional to 76,021.76, 104,763.84 and 53,626.88 is: 73,901.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,021.76 : 104,763.84 = 53,626.88 : x
  2. Step 2: Convert to fraction form
    76,021.76/104,763.84 = 53,626.88/x
  3. Step 3: Cross multiply
    76,021.76x = 104,763.84 × 53,626.88
  4. Step 4: Simplify right side
    76,021.76x = 5,618,157,876.02
  5. Step 5: Solve for x
    x = 5,618,157,876.02/76,021.76
  6. Step 6: Final answer
    x = 73,901.97

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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.