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Finding the Fourth Proportional to 14,246.55, 19,649.03 and 13,291.63

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Solution

The fourth proportional to 14,246.55, 19,649.03 and 13,291.63 is: 18,331.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,246.55 : 19,649.03 = 13,291.63 : x
  2. Step 2: Convert to fraction form
    14,246.55/19,649.03 = 13,291.63/x
  3. Step 3: Cross multiply
    14,246.55x = 19,649.03 × 13,291.63
  4. Step 4: Simplify right side
    14,246.55x = 261,167,636.62
  5. Step 5: Solve for x
    x = 261,167,636.62/14,246.55
  6. Step 6: Final answer
    x = 18,331.99

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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.