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Finding the Fourth Proportional to 16,692, 23,034.96 and 9,240

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Solution

The fourth proportional to 16,692, 23,034.96 and 9,240 is: 12,751.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,692 : 23,034.96 = 9,240 : x
  2. Step 2: Convert to fraction form
    16,692/23,034.96 = 9,240/x
  3. Step 3: Cross multiply
    16,692x = 23,034.96 × 9,240
  4. Step 4: Simplify right side
    16,692x = 212,843,030.40
  5. Step 5: Solve for x
    x = 212,843,030.40/16,692
  6. Step 6: Final answer
    x = 12,751.20

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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.