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Finding the Fourth Proportional to 14,726.80, 20,322.98 and 8,012.42

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Solution

The fourth proportional to 14,726.80, 20,322.98 and 8,012.42 is: 11,057.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,726.80 : 20,322.98 = 8,012.42 : x
  2. Step 2: Convert to fraction form
    14,726.80/20,322.98 = 8,012.42/x
  3. Step 3: Cross multiply
    14,726.80x = 20,322.98 × 8,012.42
  4. Step 4: Simplify right side
    14,726.80x = 162,836,193.46
  5. Step 5: Solve for x
    x = 162,836,193.46/14,726.80
  6. Step 6: Final answer
    x = 11,057.13

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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.