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Finding the Fourth Proportional to 12,935.44, 19,403.16 and 10,326.16

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Solution

The fourth proportional to 12,935.44, 19,403.16 and 10,326.16 is: 15,489.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,935.44 : 19,403.16 = 10,326.16 : x
  2. Step 2: Convert to fraction form
    12,935.44/19,403.16 = 10,326.16/x
  3. Step 3: Cross multiply
    12,935.44x = 19,403.16 × 10,326.16
  4. Step 4: Simplify right side
    12,935.44x = 200,360,134.67
  5. Step 5: Solve for x
    x = 200,360,134.67/12,935.44
  6. Step 6: Final answer
    x = 15,489.24

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1.5x scale

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.