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Finding the Fourth Proportional to 12,300.84, 16,975.32 and 6,711.84

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Solution

The fourth proportional to 12,300.84, 16,975.32 and 6,711.84 is: 9,262.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,300.84 : 16,975.32 = 6,711.84 : x
  2. Step 2: Convert to fraction form
    12,300.84/16,975.32 = 6,711.84/x
  3. Step 3: Cross multiply
    12,300.84x = 16,975.32 × 6,711.84
  4. Step 4: Simplify right side
    12,300.84x = 113,935,631.79
  5. Step 5: Solve for x
    x = 113,935,631.79/12,300.84
  6. Step 6: Final answer
    x = 9,262.43

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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.