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Finding the Fourth Proportional to 14,391.98, 19,861.94 and 8,018.99

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Solution

The fourth proportional to 14,391.98, 19,861.94 and 8,018.99 is: 11,066.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,391.98 : 19,861.94 = 8,018.99 : x
  2. Step 2: Convert to fraction form
    14,391.98/19,861.94 = 8,018.99/x
  3. Step 3: Cross multiply
    14,391.98x = 19,861.94 × 8,018.99
  4. Step 4: Simplify right side
    14,391.98x = 159,272,698.24
  5. Step 5: Solve for x
    x = 159,272,698.24/14,391.98
  6. Step 6: Final answer
    x = 11,066.77

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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.