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Finding the Fourth Proportional to 12,283.34, 16,951.47 and 6,979.06

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Solution

The fourth proportional to 12,283.34, 16,951.47 and 6,979.06 is: 9,631.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,283.34 : 16,951.47 = 6,979.06 : x
  2. Step 2: Convert to fraction form
    12,283.34/16,951.47 = 6,979.06/x
  3. Step 3: Cross multiply
    12,283.34x = 16,951.47 × 6,979.06
  4. Step 4: Simplify right side
    12,283.34x = 118,305,283.84
  5. Step 5: Solve for x
    x = 118,305,283.84/12,283.34
  6. Step 6: Final answer
    x = 9,631.36

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1.5x scale

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.