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Finding the Fourth Proportional to 11,370.40, 17,023.20 and 10,074.40

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Solution

The fourth proportional to 11,370.40, 17,023.20 and 10,074.40 is: 15,082.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,370.40 : 17,023.20 = 10,074.40 : x
  2. Step 2: Convert to fraction form
    11,370.40/17,023.20 = 10,074.40/x
  3. Step 3: Cross multiply
    11,370.40x = 17,023.20 × 10,074.40
  4. Step 4: Simplify right side
    11,370.40x = 171,498,526.08
  5. Step 5: Solve for x
    x = 171,498,526.08/11,370.40
  6. Step 6: Final answer
    x = 15,082.89

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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.