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Finding the Fourth Proportional to 12,522.40, 18,783.60 and 11,501.80

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Solution

The fourth proportional to 12,522.40, 18,783.60 and 11,501.80 is: 17,252.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,522.40 : 18,783.60 = 11,501.80 : x
  2. Step 2: Convert to fraction form
    12,522.40/18,783.60 = 11,501.80/x
  3. Step 3: Cross multiply
    12,522.40x = 18,783.60 × 11,501.80
  4. Step 4: Simplify right side
    12,522.40x = 216,045,210.48
  5. Step 5: Solve for x
    x = 216,045,210.48/12,522.40
  6. Step 6: Final answer
    x = 17,252.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.