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Finding the Fourth Proportional to 9,912.60, 14,844.60 and 6,607.80

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Solution

The fourth proportional to 9,912.60, 14,844.60 and 6,607.80 is: 9,895.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,912.60 : 14,844.60 = 6,607.80 : x
  2. Step 2: Convert to fraction form
    9,912.60/14,844.60 = 6,607.80/x
  3. Step 3: Cross multiply
    9,912.60x = 14,844.60 × 6,607.80
  4. Step 4: Simplify right side
    9,912.60x = 98,090,147.88
  5. Step 5: Solve for x
    x = 98,090,147.88/9,912.60
  6. Step 6: Final answer
    x = 9,895.50

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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.