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Finding the Fourth Proportional to 10,940.60, 16,386.60 and 9,482.60

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Solution

The fourth proportional to 10,940.60, 16,386.60 and 9,482.60 is: 14,202.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,940.60 : 16,386.60 = 9,482.60 : x
  2. Step 2: Convert to fraction form
    10,940.60/16,386.60 = 9,482.60/x
  3. Step 3: Cross multiply
    10,940.60x = 16,386.60 × 9,482.60
  4. Step 4: Simplify right side
    10,940.60x = 155,387,573.16
  5. Step 5: Solve for x
    x = 155,387,573.16/10,940.60
  6. Step 6: Final answer
    x = 14,202.84

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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.