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Finding the Fourth Proportional to 13,096.66, 17,955.54 and 12,859.74

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Solution

The fourth proportional to 13,096.66, 17,955.54 and 12,859.74 is: 17,630.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,096.66 : 17,955.54 = 12,859.74 : x
  2. Step 2: Convert to fraction form
    13,096.66/17,955.54 = 12,859.74/x
  3. Step 3: Cross multiply
    13,096.66x = 17,955.54 × 12,859.74
  4. Step 4: Simplify right side
    13,096.66x = 230,903,575.96
  5. Step 5: Solve for x
    x = 230,903,575.96/13,096.66
  6. Step 6: Final answer
    x = 17,630.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.