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Finding the Fourth Proportional to 28,566.84, 42,852.26 and 8,842.80

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Solution

The fourth proportional to 28,566.84, 42,852.26 and 8,842.80 is: 13,264.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,566.84 : 42,852.26 = 8,842.80 : x
  2. Step 2: Convert to fraction form
    28,566.84/42,852.26 = 8,842.80/x
  3. Step 3: Cross multiply
    28,566.84x = 42,852.26 × 8,842.80
  4. Step 4: Simplify right side
    28,566.84x = 378,933,964.73
  5. Step 5: Solve for x
    x = 378,933,964.73/28,566.84
  6. Step 6: Final answer
    x = 13,264.82

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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.