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Finding the Fourth Proportional to 9,173.89, 12,660.02 and 4,982.14

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Solution

The fourth proportional to 9,173.89, 12,660.02 and 4,982.14 is: 6,875.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,173.89 : 12,660.02 = 4,982.14 : x
  2. Step 2: Convert to fraction form
    9,173.89/12,660.02 = 4,982.14/x
  3. Step 3: Cross multiply
    9,173.89x = 12,660.02 × 4,982.14
  4. Step 4: Simplify right side
    9,173.89x = 63,073,992.04
  5. Step 5: Solve for x
    x = 63,073,992.04/9,173.89
  6. Step 6: Final answer
    x = 6,875.38

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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.