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Finding the Fourth Proportional to 19,023.53, 28,529.72 and 7,168.75

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Solution

The fourth proportional to 19,023.53, 28,529.72 and 7,168.75 is: 10,751.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,023.53 : 28,529.72 = 7,168.75 : x
  2. Step 2: Convert to fraction form
    19,023.53/28,529.72 = 7,168.75/x
  3. Step 3: Cross multiply
    19,023.53x = 28,529.72 × 7,168.75
  4. Step 4: Simplify right side
    19,023.53x = 204,522,430.25
  5. Step 5: Solve for x
    x = 204,522,430.25/19,023.53
  6. Step 6: Final answer
    x = 10,751.02

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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.