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Finding the Fourth Proportional to 14,869.48, 20,519.14 and 8,581.48

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Solution

The fourth proportional to 14,869.48, 20,519.14 and 8,581.48 is: 11,842.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,869.48 : 20,519.14 = 8,581.48 : x
  2. Step 2: Convert to fraction form
    14,869.48/20,519.14 = 8,581.48/x
  3. Step 3: Cross multiply
    14,869.48x = 20,519.14 × 8,581.48
  4. Step 4: Simplify right side
    14,869.48x = 176,084,589.53
  5. Step 5: Solve for x
    x = 176,084,589.53/14,869.48
  6. Step 6: Final answer
    x = 11,842.01

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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.