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Finding the Fourth Proportional to 18,655.59, 27,983.46 and 7,562.49

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Solution

The fourth proportional to 18,655.59, 27,983.46 and 7,562.49 is: 11,343.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,655.59 : 27,983.46 = 7,562.49 : x
  2. Step 2: Convert to fraction form
    18,655.59/27,983.46 = 7,562.49/x
  3. Step 3: Cross multiply
    18,655.59x = 27,983.46 × 7,562.49
  4. Step 4: Simplify right side
    18,655.59x = 211,624,636.42
  5. Step 5: Solve for x
    x = 211,624,636.42/18,655.59
  6. Step 6: Final answer
    x = 11,343.77

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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.