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Finding the Fourth Proportional to 28,566.84, 42,852.28 and 8,842.84

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Solution

The fourth proportional to 28,566.84, 42,852.28 and 8,842.84 is: 13,264.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,566.84 : 42,852.28 = 8,842.84 : x
  2. Step 2: Convert to fraction form
    28,566.84/42,852.28 = 8,842.84/x
  3. Step 3: Cross multiply
    28,566.84x = 42,852.28 × 8,842.84
  4. Step 4: Simplify right side
    28,566.84x = 378,935,855.68
  5. Step 5: Solve for x
    x = 378,935,855.68/28,566.84
  6. Step 6: Final answer
    x = 13,264.89

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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.