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Finding the Fourth Proportional to 44,575.56, 66,861.72 and 13,410

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Solution

The fourth proportional to 44,575.56, 66,861.72 and 13,410 is: 20,114.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,575.56 : 66,861.72 = 13,410 : x
  2. Step 2: Convert to fraction form
    44,575.56/66,861.72 = 13,410/x
  3. Step 3: Cross multiply
    44,575.56x = 66,861.72 × 13,410
  4. Step 4: Simplify right side
    44,575.56x = 896,615,665.20
  5. Step 5: Solve for x
    x = 896,615,665.20/44,575.56
  6. Step 6: Final answer
    x = 20,114.51

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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.