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Finding the Fourth Proportional to 22,673.88, 31,287.06 and 12,600.72

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Solution

The fourth proportional to 22,673.88, 31,287.06 and 12,600.72 is: 17,387.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,673.88 : 31,287.06 = 12,600.72 : x
  2. Step 2: Convert to fraction form
    22,673.88/31,287.06 = 12,600.72/x
  3. Step 3: Cross multiply
    22,673.88x = 31,287.06 × 12,600.72
  4. Step 4: Simplify right side
    22,673.88x = 394,239,482.68
  5. Step 5: Solve for x
    x = 394,239,482.68/22,673.88
  6. Step 6: Final answer
    x = 17,387.39

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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.