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Finding the Fourth Proportional to 14,649.81, 21,926.12 and 11,707.89

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Solution

The fourth proportional to 14,649.81, 21,926.12 and 11,707.89 is: 17,522.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,649.81 : 21,926.12 = 11,707.89 : x
  2. Step 2: Convert to fraction form
    14,649.81/21,926.12 = 11,707.89/x
  3. Step 3: Cross multiply
    14,649.81x = 21,926.12 × 11,707.89
  4. Step 4: Simplify right side
    14,649.81x = 256,708,542.55
  5. Step 5: Solve for x
    x = 256,708,542.55/14,649.81
  6. Step 6: Final answer
    x = 17,522.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.