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Finding the Fourth Proportional to 11,967.81, 17,931.92 and 7,273.56

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Solution

The fourth proportional to 11,967.81, 17,931.92 and 7,273.56 is: 10,898.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,967.81 : 17,931.92 = 7,273.56 : x
  2. Step 2: Convert to fraction form
    11,967.81/17,931.92 = 7,273.56/x
  3. Step 3: Cross multiply
    11,967.81x = 17,931.92 × 7,273.56
  4. Step 4: Simplify right side
    11,967.81x = 130,428,881.95
  5. Step 5: Solve for x
    x = 130,428,881.95/11,967.81
  6. Step 6: Final answer
    x = 10,898.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.