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Finding the Fourth Proportional to 18,145.01, 27,210.60 and 10,751.55

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Solution

The fourth proportional to 18,145.01, 27,210.60 and 10,751.55 is: 16,123.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145.01 : 27,210.60 = 10,751.55 : x
  2. Step 2: Convert to fraction form
    18,145.01/27,210.60 = 10,751.55/x
  3. Step 3: Cross multiply
    18,145.01x = 27,210.60 × 10,751.55
  4. Step 4: Simplify right side
    18,145.01x = 292,556,126.43
  5. Step 5: Solve for x
    x = 292,556,126.43/18,145.01
  6. Step 6: Final answer
    x = 16,123.23

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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.