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Finding the Fourth Proportional to 30,662.88, 46,012.05 and 12,892.14

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Solution

The fourth proportional to 30,662.88, 46,012.05 and 12,892.14 is: 19,345.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,662.88 : 46,012.05 = 12,892.14 : x
  2. Step 2: Convert to fraction form
    30,662.88/46,012.05 = 12,892.14/x
  3. Step 3: Cross multiply
    30,662.88x = 46,012.05 × 12,892.14
  4. Step 4: Simplify right side
    30,662.88x = 593,193,790.29
  5. Step 5: Solve for x
    x = 593,193,790.29/30,662.88
  6. Step 6: Final answer
    x = 19,345.66

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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.