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Finding the Fourth Proportional to 14,451.59, 19,945.31 and 8,486.52

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Solution

The fourth proportional to 14,451.59, 19,945.31 and 8,486.52 is: 11,712.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,451.59 : 19,945.31 = 8,486.52 : x
  2. Step 2: Convert to fraction form
    14,451.59/19,945.31 = 8,486.52/x
  3. Step 3: Cross multiply
    14,451.59x = 19,945.31 × 8,486.52
  4. Step 4: Simplify right side
    14,451.59x = 169,266,272.22
  5. Step 5: Solve for x
    x = 169,266,272.22/14,451.59
  6. Step 6: Final answer
    x = 11,712.64

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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.