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Finding the Fourth Proportional to 14,470.63, 19,965.74 and 8,501.14

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Solution

The fourth proportional to 14,470.63, 19,965.74 and 8,501.14 is: 11,729.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,470.63 : 19,965.74 = 8,501.14 : x
  2. Step 2: Convert to fraction form
    14,470.63/19,965.74 = 8,501.14/x
  3. Step 3: Cross multiply
    14,470.63x = 19,965.74 × 8,501.14
  4. Step 4: Simplify right side
    14,470.63x = 169,731,468.91
  5. Step 5: Solve for x
    x = 169,731,468.91/14,470.63
  6. Step 6: Final answer
    x = 11,729.37

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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.