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Finding the Fourth Proportional to 12,013.92, 16,580.88 and 6,709.04

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Solution

The fourth proportional to 12,013.92, 16,580.88 and 6,709.04 is: 9,259.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,013.92 : 16,580.88 = 6,709.04 : x
  2. Step 2: Convert to fraction form
    12,013.92/16,580.88 = 6,709.04/x
  3. Step 3: Cross multiply
    12,013.92x = 16,580.88 × 6,709.04
  4. Step 4: Simplify right side
    12,013.92x = 111,241,787.16
  5. Step 5: Solve for x
    x = 111,241,787.16/12,013.92
  6. Step 6: Final answer
    x = 9,259.41

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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.