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Finding the Fourth Proportional to 11,772.60, 17,658.92 and 7,393.14

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Solution

The fourth proportional to 11,772.60, 17,658.92 and 7,393.14 is: 11,089.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,772.60 : 17,658.92 = 7,393.14 : x
  2. Step 2: Convert to fraction form
    11,772.60/17,658.92 = 7,393.14/x
  3. Step 3: Cross multiply
    11,772.60x = 17,658.92 × 7,393.14
  4. Step 4: Simplify right side
    11,772.60x = 130,554,867.81
  5. Step 5: Solve for x
    x = 130,554,867.81/11,772.60
  6. Step 6: Final answer
    x = 11,089.72

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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.