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Finding the Fourth Proportional to 8,771.58, 13,141.53 and 4,818.54

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Solution

The fourth proportional to 8,771.58, 13,141.53 and 4,818.54 is: 7,219.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,771.58 : 13,141.53 = 4,818.54 : x
  2. Step 2: Convert to fraction form
    8,771.58/13,141.53 = 4,818.54/x
  3. Step 3: Cross multiply
    8,771.58x = 13,141.53 × 4,818.54
  4. Step 4: Simplify right side
    8,771.58x = 63,322,987.97
  5. Step 5: Solve for x
    x = 63,322,987.97/8,771.58
  6. Step 6: Final answer
    x = 7,219.11

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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.