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Finding the Fourth Proportional to 19,392.40, 28,998.69 and 14,713.44

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Solution

The fourth proportional to 19,392.40, 28,998.69 and 14,713.44 is: 22,001.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,392.40 : 28,998.69 = 14,713.44 : x
  2. Step 2: Convert to fraction form
    19,392.40/28,998.69 = 14,713.44/x
  3. Step 3: Cross multiply
    19,392.40x = 28,998.69 × 14,713.44
  4. Step 4: Simplify right side
    19,392.40x = 426,670,485.39
  5. Step 5: Solve for x
    x = 426,670,485.39/19,392.40
  6. Step 6: Final answer
    x = 22,001.94

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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.