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Finding the Fourth Proportional to 14,733.80, 20,331.98 and 8,019.41

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Solution

The fourth proportional to 14,733.80, 20,331.98 and 8,019.41 is: 11,066.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,733.80 : 20,331.98 = 8,019.41 : x
  2. Step 2: Convert to fraction form
    14,733.80/20,331.98 = 8,019.41/x
  3. Step 3: Cross multiply
    14,733.80x = 20,331.98 × 8,019.41
  4. Step 4: Simplify right side
    14,733.80x = 163,050,554.61
  5. Step 5: Solve for x
    x = 163,050,554.61/14,733.80
  6. Step 6: Final answer
    x = 11,066.43

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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.