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Finding the Fourth Proportional to 8,797.74, 13,196.62 and 7,419.94

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Solution

The fourth proportional to 8,797.74, 13,196.62 and 7,419.94 is: 11,129.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,797.74 : 13,196.62 = 7,419.94 : x
  2. Step 2: Convert to fraction form
    8,797.74/13,196.62 = 7,419.94/x
  3. Step 3: Cross multiply
    8,797.74x = 13,196.62 × 7,419.94
  4. Step 4: Simplify right side
    8,797.74x = 97,918,128.60
  5. Step 5: Solve for x
    x = 97,918,128.60/8,797.74
  6. Step 6: Final answer
    x = 11,129.92

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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.