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Finding the Fourth Proportional to 12,257.76, 16,914.74 and 6,953.43

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Solution

The fourth proportional to 12,257.76, 16,914.74 and 6,953.43 is: 9,595.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,257.76 : 16,914.74 = 6,953.43 : x
  2. Step 2: Convert to fraction form
    12,257.76/16,914.74 = 6,953.43/x
  3. Step 3: Cross multiply
    12,257.76x = 16,914.74 × 6,953.43
  4. Step 4: Simplify right side
    12,257.76x = 117,615,425.79
  5. Step 5: Solve for x
    x = 117,615,425.79/12,257.76
  6. Step 6: Final answer
    x = 9,595.18

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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.