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Finding the Fourth Proportional to 16,915.60, 25,324.80 and 14,971.60

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Solution

The fourth proportional to 16,915.60, 25,324.80 and 14,971.60 is: 22,414.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,915.60 : 25,324.80 = 14,971.60 : x
  2. Step 2: Convert to fraction form
    16,915.60/25,324.80 = 14,971.60/x
  3. Step 3: Cross multiply
    16,915.60x = 25,324.80 × 14,971.60
  4. Step 4: Simplify right side
    16,915.60x = 379,152,775.68
  5. Step 5: Solve for x
    x = 379,152,775.68/16,915.60
  6. Step 6: Final answer
    x = 22,414.39

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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.