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Finding the Fourth Proportional to 18,310.68, 25,268.76 and 9,927.18

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Solution

The fourth proportional to 18,310.68, 25,268.76 and 9,927.18 is: 13,699.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,310.68 : 25,268.76 = 9,927.18 : x
  2. Step 2: Convert to fraction form
    18,310.68/25,268.76 = 9,927.18/x
  3. Step 3: Cross multiply
    18,310.68x = 25,268.76 × 9,927.18
  4. Step 4: Simplify right side
    18,310.68x = 250,847,528.90
  5. Step 5: Solve for x
    x = 250,847,528.90/18,310.68
  6. Step 6: Final answer
    x = 13,699.52

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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.