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Finding the Fourth Proportional to 12,294.60, 18,436.50 and 4,503.48

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Solution

The fourth proportional to 12,294.60, 18,436.50 and 4,503.48 is: 6,753.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,294.60 : 18,436.50 = 4,503.48 : x
  2. Step 2: Convert to fraction form
    12,294.60/18,436.50 = 4,503.48/x
  3. Step 3: Cross multiply
    12,294.60x = 18,436.50 × 4,503.48
  4. Step 4: Simplify right side
    12,294.60x = 83,028,409.02
  5. Step 5: Solve for x
    x = 83,028,409.02/12,294.60
  6. Step 6: Final answer
    x = 6,753.24

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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.