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Finding the Fourth Proportional to 8,570.78, 11,826.86 and 4,793.85

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Solution

The fourth proportional to 8,570.78, 11,826.86 and 4,793.85 is: 6,615.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,570.78 : 11,826.86 = 4,793.85 : x
  2. Step 2: Convert to fraction form
    8,570.78/11,826.86 = 4,793.85/x
  3. Step 3: Cross multiply
    8,570.78x = 11,826.86 × 4,793.85
  4. Step 4: Simplify right side
    8,570.78x = 56,696,192.81
  5. Step 5: Solve for x
    x = 56,696,192.81/8,570.78
  6. Step 6: Final answer
    x = 6,615.06

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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.