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Finding the Fourth Proportional to 4,798.24, 7,200.24 and 1,720.48

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Solution

The fourth proportional to 4,798.24, 7,200.24 and 1,720.48 is: 2,581.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,798.24 : 7,200.24 = 1,720.48 : x
  2. Step 2: Convert to fraction form
    4,798.24/7,200.24 = 1,720.48/x
  3. Step 3: Cross multiply
    4,798.24x = 7,200.24 × 1,720.48
  4. Step 4: Simplify right side
    4,798.24x = 12,387,868.92
  5. Step 5: Solve for x
    x = 12,387,868.92/4,798.24
  6. Step 6: Final answer
    x = 2,581.75

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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.