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Finding the Fourth Proportional to 15,394.60, 23,092.64 and 7,994.40

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Solution

The fourth proportional to 15,394.60, 23,092.64 and 7,994.40 is: 11,991.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,394.60 : 23,092.64 = 7,994.40 : x
  2. Step 2: Convert to fraction form
    15,394.60/23,092.64 = 7,994.40/x
  3. Step 3: Cross multiply
    15,394.60x = 23,092.64 × 7,994.40
  4. Step 4: Simplify right side
    15,394.60x = 184,611,801.22
  5. Step 5: Solve for x
    x = 184,611,801.22/15,394.60
  6. Step 6: Final answer
    x = 11,991.98

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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.