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Finding the Fourth Proportional to 8,901.64, 12,286.02 and 5,176.36

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Solution

The fourth proportional to 8,901.64, 12,286.02 and 5,176.36 is: 7,144.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,901.64 : 12,286.02 = 5,176.36 : x
  2. Step 2: Convert to fraction form
    8,901.64/12,286.02 = 5,176.36/x
  3. Step 3: Cross multiply
    8,901.64x = 12,286.02 × 5,176.36
  4. Step 4: Simplify right side
    8,901.64x = 63,596,862.49
  5. Step 5: Solve for x
    x = 63,596,862.49/8,901.64
  6. Step 6: Final answer
    x = 7,144.40

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.