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Finding the Fourth Proportional to 4,932.48, 7,412.40 and 3,403.20

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Solution

The fourth proportional to 4,932.48, 7,412.40 and 3,403.20 is: 5,114.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,932.48 : 7,412.40 = 3,403.20 : x
  2. Step 2: Convert to fraction form
    4,932.48/7,412.40 = 3,403.20/x
  3. Step 3: Cross multiply
    4,932.48x = 7,412.40 × 3,403.20
  4. Step 4: Simplify right side
    4,932.48x = 25,225,879.68
  5. Step 5: Solve for x
    x = 25,225,879.68/4,932.48
  6. Step 6: Final answer
    x = 5,114.24

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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.