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Finding the Fourth Proportional to 19,605.42, 27,059.70 and 12,058.14

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Solution

The fourth proportional to 19,605.42, 27,059.70 and 12,058.14 is: 16,642.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,605.42 : 27,059.70 = 12,058.14 : x
  2. Step 2: Convert to fraction form
    19,605.42/27,059.70 = 12,058.14/x
  3. Step 3: Cross multiply
    19,605.42x = 27,059.70 × 12,058.14
  4. Step 4: Simplify right side
    19,605.42x = 326,289,650.96
  5. Step 5: Solve for x
    x = 326,289,650.96/19,605.42
  6. Step 6: Final answer
    x = 16,642.83

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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.