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Finding the Fourth Proportional to 10,804.80, 14,906.24 and 6,615.48

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Solution

The fourth proportional to 10,804.80, 14,906.24 and 6,615.48 is: 9,126.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,804.80 : 14,906.24 = 6,615.48 : x
  2. Step 2: Convert to fraction form
    10,804.80/14,906.24 = 6,615.48/x
  3. Step 3: Cross multiply
    10,804.80x = 14,906.24 × 6,615.48
  4. Step 4: Simplify right side
    10,804.80x = 98,611,932.60
  5. Step 5: Solve for x
    x = 98,611,932.60/10,804.80
  6. Step 6: Final answer
    x = 9,126.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.