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Finding the Fourth Proportional to 43,172.44, 64,758.42 and 13,592.44

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Solution

The fourth proportional to 43,172.44, 64,758.42 and 13,592.44 is: 20,388.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,172.44 : 64,758.42 = 13,592.44 : x
  2. Step 2: Convert to fraction form
    43,172.44/64,758.42 = 13,592.44/x
  3. Step 3: Cross multiply
    43,172.44x = 64,758.42 × 13,592.44
  4. Step 4: Simplify right side
    43,172.44x = 880,224,938.34
  5. Step 5: Solve for x
    x = 880,224,938.34/43,172.44
  6. Step 6: Final answer
    x = 20,388.58

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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.