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Finding the Fourth Proportional to 18,966.60, 26,172.05 and 10,468.18

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Solution

The fourth proportional to 18,966.60, 26,172.05 and 10,468.18 is: 14,445.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,966.60 : 26,172.05 = 10,468.18 : x
  2. Step 2: Convert to fraction form
    18,966.60/26,172.05 = 10,468.18/x
  3. Step 3: Cross multiply
    18,966.60x = 26,172.05 × 10,468.18
  4. Step 4: Simplify right side
    18,966.60x = 273,973,612.60
  5. Step 5: Solve for x
    x = 273,973,612.60/18,966.60
  6. Step 6: Final answer
    x = 14,445.06

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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.