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Finding the Fourth Proportional to 18,994.67, 28,474.59 and 7,299.08

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Solution

The fourth proportional to 18,994.67, 28,474.59 and 7,299.08 is: 10,941.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,994.67 : 28,474.59 = 7,299.08 : x
  2. Step 2: Convert to fraction form
    18,994.67/28,474.59 = 7,299.08/x
  3. Step 3: Cross multiply
    18,994.67x = 28,474.59 × 7,299.08
  4. Step 4: Simplify right side
    18,994.67x = 207,838,261.10
  5. Step 5: Solve for x
    x = 207,838,261.10/18,994.67
  6. Step 6: Final answer
    x = 10,941.93

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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.