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Finding the Fourth Proportional to 13,381.74, 20,068.56 and 9,673.56

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Solution

The fourth proportional to 13,381.74, 20,068.56 and 9,673.56 is: 14,507.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381.74 : 20,068.56 = 9,673.56 : x
  2. Step 2: Convert to fraction form
    13,381.74/20,068.56 = 9,673.56/x
  3. Step 3: Cross multiply
    13,381.74x = 20,068.56 × 9,673.56
  4. Step 4: Simplify right side
    13,381.74x = 194,134,419.27
  5. Step 5: Solve for x
    x = 194,134,419.27/13,381.74
  6. Step 6: Final answer
    x = 14,507.41

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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.