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Finding the Fourth Proportional to 29,662.53, 40,938.89 and 16,915.74

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Solution

The fourth proportional to 29,662.53, 40,938.89 and 16,915.74 is: 23,346.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,662.53 : 40,938.89 = 16,915.74 : x
  2. Step 2: Convert to fraction form
    29,662.53/40,938.89 = 16,915.74/x
  3. Step 3: Cross multiply
    29,662.53x = 40,938.89 × 16,915.74
  4. Step 4: Simplify right side
    29,662.53x = 692,511,534.55
  5. Step 5: Solve for x
    x = 692,511,534.55/29,662.53
  6. Step 6: Final answer
    x = 23,346.34

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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.