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Finding the Fourth Proportional to 14,313.94, 19,753.44 and 8,647.90

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Solution

The fourth proportional to 14,313.94, 19,753.44 and 8,647.90 is: 11,934.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,313.94 : 19,753.44 = 8,647.90 : x
  2. Step 2: Convert to fraction form
    14,313.94/19,753.44 = 8,647.90/x
  3. Step 3: Cross multiply
    14,313.94x = 19,753.44 × 8,647.90
  4. Step 4: Simplify right side
    14,313.94x = 170,825,631.77
  5. Step 5: Solve for x
    x = 170,825,631.77/14,313.94
  6. Step 6: Final answer
    x = 11,934.22

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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.