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Finding the Fourth Proportional to 12,313.42, 16,992.28 and 7,008.11

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Solution

The fourth proportional to 12,313.42, 16,992.28 and 7,008.11 is: 9,671.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,313.42 : 16,992.28 = 7,008.11 : x
  2. Step 2: Convert to fraction form
    12,313.42/16,992.28 = 7,008.11/x
  3. Step 3: Cross multiply
    12,313.42x = 16,992.28 × 7,008.11
  4. Step 4: Simplify right side
    12,313.42x = 119,083,767.39
  5. Step 5: Solve for x
    x = 119,083,767.39/12,313.42
  6. Step 6: Final answer
    x = 9,671.06

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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.