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Finding the Fourth Proportional to 30,017.62, 45,026.43 and 11,301.86

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Solution

The fourth proportional to 30,017.62, 45,026.43 and 11,301.86 is: 16,952.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,017.62 : 45,026.43 = 11,301.86 : x
  2. Step 2: Convert to fraction form
    30,017.62/45,026.43 = 11,301.86/x
  3. Step 3: Cross multiply
    30,017.62x = 45,026.43 × 11,301.86
  4. Step 4: Simplify right side
    30,017.62x = 508,882,183.03
  5. Step 5: Solve for x
    x = 508,882,183.03/30,017.62
  6. Step 6: Final answer
    x = 16,952.78

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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.