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Finding the Fourth Proportional to 18,697.30, 28,045.33 and 7,601.01

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Solution

The fourth proportional to 18,697.30, 28,045.33 and 7,601.01 is: 11,401.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,697.30 : 28,045.33 = 7,601.01 : x
  2. Step 2: Convert to fraction form
    18,697.30/28,045.33 = 7,601.01/x
  3. Step 3: Cross multiply
    18,697.30x = 28,045.33 × 7,601.01
  4. Step 4: Simplify right side
    18,697.30x = 213,172,833.78
  5. Step 5: Solve for x
    x = 213,172,833.78/18,697.30
  6. Step 6: Final answer
    x = 11,401.26

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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.