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Finding the Fourth Proportional to 18,458.70, 27,688.05 and 17,033.10

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Solution

The fourth proportional to 18,458.70, 27,688.05 and 17,033.10 is: 25,549.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,458.70 : 27,688.05 = 17,033.10 : x
  2. Step 2: Convert to fraction form
    18,458.70/27,688.05 = 17,033.10/x
  3. Step 3: Cross multiply
    18,458.70x = 27,688.05 × 17,033.10
  4. Step 4: Simplify right side
    18,458.70x = 471,613,324.46
  5. Step 5: Solve for x
    x = 471,613,324.46/18,458.70
  6. Step 6: Final answer
    x = 25,549.65

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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.