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Finding the Fourth Proportional to 19,498.60, 29,245.74 and 5,647.60

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Solution

The fourth proportional to 19,498.60, 29,245.74 and 5,647.60 is: 8,470.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,498.60 : 29,245.74 = 5,647.60 : x
  2. Step 2: Convert to fraction form
    19,498.60/29,245.74 = 5,647.60/x
  3. Step 3: Cross multiply
    19,498.60x = 29,245.74 × 5,647.60
  4. Step 4: Simplify right side
    19,498.60x = 165,168,241.22
  5. Step 5: Solve for x
    x = 165,168,241.22/19,498.60
  6. Step 6: Final answer
    x = 8,470.77

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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.