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Finding the Fourth Proportional to 12,368.55, 18,553.23 and 3,602.73

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Solution

The fourth proportional to 12,368.55, 18,553.23 and 3,602.73 is: 5,404.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,368.55 : 18,553.23 = 3,602.73 : x
  2. Step 2: Convert to fraction form
    12,368.55/18,553.23 = 3,602.73/x
  3. Step 3: Cross multiply
    12,368.55x = 18,553.23 × 3,602.73
  4. Step 4: Simplify right side
    12,368.55x = 66,842,278.32
  5. Step 5: Solve for x
    x = 66,842,278.32/12,368.55
  6. Step 6: Final answer
    x = 5,404.21

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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.