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Finding the Fourth Proportional to 18,423.60, 27,576.60 and 14,535.60

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Solution

The fourth proportional to 18,423.60, 27,576.60 and 14,535.60 is: 21,757.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,423.60 : 27,576.60 = 14,535.60 : x
  2. Step 2: Convert to fraction form
    18,423.60/27,576.60 = 14,535.60/x
  3. Step 3: Cross multiply
    18,423.60x = 27,576.60 × 14,535.60
  4. Step 4: Simplify right side
    18,423.60x = 400,842,426.96
  5. Step 5: Solve for x
    x = 400,842,426.96/18,423.60
  6. Step 6: Final answer
    x = 21,757.01

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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.