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Finding the Fourth Proportional to 19,461.44, 26,851.83 and 11,905.01

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Solution

The fourth proportional to 19,461.44, 26,851.83 and 11,905.01 is: 16,425.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,461.44 : 26,851.83 = 11,905.01 : x
  2. Step 2: Convert to fraction form
    19,461.44/26,851.83 = 11,905.01/x
  3. Step 3: Cross multiply
    19,461.44x = 26,851.83 × 11,905.01
  4. Step 4: Simplify right side
    19,461.44x = 319,671,304.67
  5. Step 5: Solve for x
    x = 319,671,304.67/19,461.44
  6. Step 6: Final answer
    x = 16,425.88

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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.