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Finding the Fourth Proportional to 12,553.16, 18,817.48 and 5,977.58

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Solution

The fourth proportional to 12,553.16, 18,817.48 and 5,977.58 is: 8,960.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.16 : 18,817.48 = 5,977.58 : x
  2. Step 2: Convert to fraction form
    12,553.16/18,817.48 = 5,977.58/x
  3. Step 3: Cross multiply
    12,553.16x = 18,817.48 × 5,977.58
  4. Step 4: Simplify right side
    12,553.16x = 112,482,992.10
  5. Step 5: Solve for x
    x = 112,482,992.10/12,553.16
  6. Step 6: Final answer
    x = 8,960.53

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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.