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Finding the Fourth Proportional to 18,406.70, 27,615.29 and 9,049.53

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Solution

The fourth proportional to 18,406.70, 27,615.29 and 9,049.53 is: 13,576.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,406.70 : 27,615.29 = 9,049.53 : x
  2. Step 2: Convert to fraction form
    18,406.70/27,615.29 = 9,049.53/x
  3. Step 3: Cross multiply
    18,406.70x = 27,615.29 × 9,049.53
  4. Step 4: Simplify right side
    18,406.70x = 249,905,350.07
  5. Step 5: Solve for x
    x = 249,905,350.07/18,406.70
  6. Step 6: Final answer
    x = 13,576.87

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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.