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Finding the Fourth Proportional to 28,672.88, 39,569.03 and 16,097.36

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Solution

The fourth proportional to 28,672.88, 39,569.03 and 16,097.36 is: 22,214.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,672.88 : 39,569.03 = 16,097.36 : x
  2. Step 2: Convert to fraction form
    28,672.88/39,569.03 = 16,097.36/x
  3. Step 3: Cross multiply
    28,672.88x = 39,569.03 × 16,097.36
  4. Step 4: Simplify right side
    28,672.88x = 636,956,642.43
  5. Step 5: Solve for x
    x = 636,956,642.43/28,672.88
  6. Step 6: Final answer
    x = 22,214.61

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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.