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Finding the Fourth Proportional to 9,994.67, 13,788.05 and 6,459.02

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Solution

The fourth proportional to 9,994.67, 13,788.05 and 6,459.02 is: 8,910.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,994.67 : 13,788.05 = 6,459.02 : x
  2. Step 2: Convert to fraction form
    9,994.67/13,788.05 = 6,459.02/x
  3. Step 3: Cross multiply
    9,994.67x = 13,788.05 × 6,459.02
  4. Step 4: Simplify right side
    9,994.67x = 89,057,189.48
  5. Step 5: Solve for x
    x = 89,057,189.48/9,994.67
  6. Step 6: Final answer
    x = 8,910.47

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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.