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Finding the Fourth Proportional to 8,554.44, 12,835.76 and 3,877.76

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Solution

The fourth proportional to 8,554.44, 12,835.76 and 3,877.76 is: 5,818.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,554.44 : 12,835.76 = 3,877.76 : x
  2. Step 2: Convert to fraction form
    8,554.44/12,835.76 = 3,877.76/x
  3. Step 3: Cross multiply
    8,554.44x = 12,835.76 × 3,877.76
  4. Step 4: Simplify right side
    8,554.44x = 49,773,996.70
  5. Step 5: Solve for x
    x = 49,773,996.70/8,554.44
  6. Step 6: Final answer
    x = 5,818.50

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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.