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Finding the Fourth Proportional to 13,044.56, 18,001.56 and 7,076.48

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Solution

The fourth proportional to 13,044.56, 18,001.56 and 7,076.48 is: 9,765.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,044.56 : 18,001.56 = 7,076.48 : x
  2. Step 2: Convert to fraction form
    13,044.56/18,001.56 = 7,076.48/x
  3. Step 3: Cross multiply
    13,044.56x = 18,001.56 × 7,076.48
  4. Step 4: Simplify right side
    13,044.56x = 127,387,679.31
  5. Step 5: Solve for x
    x = 127,387,679.31/13,044.56
  6. Step 6: Final answer
    x = 9,765.58

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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.