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Finding the Fourth Proportional to 8,556.84, 12,835.72 and 2,713.91

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Solution

The fourth proportional to 8,556.84, 12,835.72 and 2,713.91 is: 4,071.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,556.84 : 12,835.72 = 2,713.91 : x
  2. Step 2: Convert to fraction form
    8,556.84/12,835.72 = 2,713.91/x
  3. Step 3: Cross multiply
    8,556.84x = 12,835.72 × 2,713.91
  4. Step 4: Simplify right side
    8,556.84x = 34,834,911.12
  5. Step 5: Solve for x
    x = 34,834,911.12/8,556.84
  6. Step 6: Final answer
    x = 4,071.00

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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.