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Finding the Fourth Proportional to 9,819, 14,747.37 and 8,416.59

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Solution

The fourth proportional to 9,819, 14,747.37 and 8,416.59 is: 12,641.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,819 : 14,747.37 = 8,416.59 : x
  2. Step 2: Convert to fraction form
    9,819/14,747.37 = 8,416.59/x
  3. Step 3: Cross multiply
    9,819x = 14,747.37 × 8,416.59
  4. Step 4: Simplify right side
    9,819x = 124,122,566.87
  5. Step 5: Solve for x
    x = 124,122,566.87/9,819
  6. Step 6: Final answer
    x = 12,641.06

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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.