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Finding the Fourth Proportional to 9,172.92, 12,658.80 and 5,194.02

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Solution

The fourth proportional to 9,172.92, 12,658.80 and 5,194.02 is: 7,167.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,172.92 : 12,658.80 = 5,194.02 : x
  2. Step 2: Convert to fraction form
    9,172.92/12,658.80 = 5,194.02/x
  3. Step 3: Cross multiply
    9,172.92x = 12,658.80 × 5,194.02
  4. Step 4: Simplify right side
    9,172.92x = 65,750,060.38
  5. Step 5: Solve for x
    x = 65,750,060.38/9,172.92
  6. Step 6: Final answer
    x = 7,167.84

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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.