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Finding the Fourth Proportional to 8,899.54, 13,349.53 and 4,218.42

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Solution

The fourth proportional to 8,899.54, 13,349.53 and 4,218.42 is: 6,327.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,899.54 : 13,349.53 = 4,218.42 : x
  2. Step 2: Convert to fraction form
    8,899.54/13,349.53 = 4,218.42/x
  3. Step 3: Cross multiply
    8,899.54x = 13,349.53 × 4,218.42
  4. Step 4: Simplify right side
    8,899.54x = 56,313,924.34
  5. Step 5: Solve for x
    x = 56,313,924.34/8,899.54
  6. Step 6: Final answer
    x = 6,327.73

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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.