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Finding the Fourth Proportional to 12,592.84, 18,883.20 and 7,329.03

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Solution

The fourth proportional to 12,592.84, 18,883.20 and 7,329.03 is: 10,990.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,592.84 : 18,883.20 = 7,329.03 : x
  2. Step 2: Convert to fraction form
    12,592.84/18,883.20 = 7,329.03/x
  3. Step 3: Cross multiply
    12,592.84x = 18,883.20 × 7,329.03
  4. Step 4: Simplify right side
    12,592.84x = 138,395,581.57
  5. Step 5: Solve for x
    x = 138,395,581.57/12,592.84
  6. Step 6: Final answer
    x = 10,990.02

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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.