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Finding the Fourth Proportional to 8,768.58, 12,100.20 and 4,788.96

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Solution

The fourth proportional to 8,768.58, 12,100.20 and 4,788.96 is: 6,608.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,768.58 : 12,100.20 = 4,788.96 : x
  2. Step 2: Convert to fraction form
    8,768.58/12,100.20 = 4,788.96/x
  3. Step 3: Cross multiply
    8,768.58x = 12,100.20 × 4,788.96
  4. Step 4: Simplify right side
    8,768.58x = 57,947,373.79
  5. Step 5: Solve for x
    x = 57,947,373.79/8,768.58
  6. Step 6: Final answer
    x = 6,608.52

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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.