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Finding the Fourth Proportional to 5,854.64, 8,079.48 and 3,992.24

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Solution

The fourth proportional to 5,854.64, 8,079.48 and 3,992.24 is: 5,509.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,854.64 : 8,079.48 = 3,992.24 : x
  2. Step 2: Convert to fraction form
    5,854.64/8,079.48 = 3,992.24/x
  3. Step 3: Cross multiply
    5,854.64x = 8,079.48 × 3,992.24
  4. Step 4: Simplify right side
    5,854.64x = 32,255,223.24
  5. Step 5: Solve for x
    x = 32,255,223.24/5,854.64
  6. Step 6: Final answer
    x = 5,509.34

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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.