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Finding the Fourth Proportional to 8,796.64, 13,196.40 and 4,178.08

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Solution

The fourth proportional to 8,796.64, 13,196.40 and 4,178.08 is: 6,267.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,796.64 : 13,196.40 = 4,178.08 : x
  2. Step 2: Convert to fraction form
    8,796.64/13,196.40 = 4,178.08/x
  3. Step 3: Cross multiply
    8,796.64x = 13,196.40 × 4,178.08
  4. Step 4: Simplify right side
    8,796.64x = 55,135,614.91
  5. Step 5: Solve for x
    x = 55,135,614.91/8,796.64
  6. Step 6: Final answer
    x = 6,267.80

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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.