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Finding the Fourth Proportional to 5,422.86, 7,484.04 and 3,434.04

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Solution

The fourth proportional to 5,422.86, 7,484.04 and 3,434.04 is: 4,739.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.86 : 7,484.04 = 3,434.04 : x
  2. Step 2: Convert to fraction form
    5,422.86/7,484.04 = 3,434.04/x
  3. Step 3: Cross multiply
    5,422.86x = 7,484.04 × 3,434.04
  4. Step 4: Simplify right side
    5,422.86x = 25,700,492.72
  5. Step 5: Solve for x
    x = 25,700,492.72/5,422.86
  6. Step 6: Final answer
    x = 4,739.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.