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Finding the Fourth Proportional to 22,671.84, 31,287.06 and 12,735.84

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Solution

The fourth proportional to 22,671.84, 31,287.06 and 12,735.84 is: 17,575.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,671.84 : 31,287.06 = 12,735.84 : x
  2. Step 2: Convert to fraction form
    22,671.84/31,287.06 = 12,735.84/x
  3. Step 3: Cross multiply
    22,671.84x = 31,287.06 × 12,735.84
  4. Step 4: Simplify right side
    22,671.84x = 398,466,990.23
  5. Step 5: Solve for x
    x = 398,466,990.23/22,671.84
  6. Step 6: Final answer
    x = 17,575.41

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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.