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Finding the Fourth Proportional to 40,915.01, 61,372.44 and 13,213.01

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Solution

The fourth proportional to 40,915.01, 61,372.44 and 13,213.01 is: 19,819.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,915.01 : 61,372.44 = 13,213.01 : x
  2. Step 2: Convert to fraction form
    40,915.01/61,372.44 = 13,213.01/x
  3. Step 3: Cross multiply
    40,915.01x = 61,372.44 × 13,213.01
  4. Step 4: Simplify right side
    40,915.01x = 810,914,356.58
  5. Step 5: Solve for x
    x = 810,914,356.58/40,915.01
  6. Step 6: Final answer
    x = 19,819.49

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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.