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Finding the Fourth Proportional to 4,156.58, 5,736.02 and 2,388.20

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Solution

The fourth proportional to 4,156.58, 5,736.02 and 2,388.20 is: 3,295.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,156.58 : 5,736.02 = 2,388.20 : x
  2. Step 2: Convert to fraction form
    4,156.58/5,736.02 = 2,388.20/x
  3. Step 3: Cross multiply
    4,156.58x = 5,736.02 × 2,388.20
  4. Step 4: Simplify right side
    4,156.58x = 13,698,762.96
  5. Step 5: Solve for x
    x = 13,698,762.96/4,156.58
  6. Step 6: Final answer
    x = 3,295.68

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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.