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Finding the Fourth Proportional to 16,492.84, 22,748.31 and 11,390.31

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Solution

The fourth proportional to 16,492.84, 22,748.31 and 11,390.31 is: 15,710.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,492.84 : 22,748.31 = 11,390.31 : x
  2. Step 2: Convert to fraction form
    16,492.84/22,748.31 = 11,390.31/x
  3. Step 3: Cross multiply
    16,492.84x = 22,748.31 × 11,390.31
  4. Step 4: Simplify right side
    16,492.84x = 259,110,302.88
  5. Step 5: Solve for x
    x = 259,110,302.88/16,492.84
  6. Step 6: Final answer
    x = 15,710.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.