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Finding the Fourth Proportional to 71,313.56, 98,405.90 and 42,627.52

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Solution

The fourth proportional to 71,313.56, 98,405.90 and 42,627.52 is: 58,821.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,313.56 : 98,405.90 = 42,627.52 : x
  2. Step 2: Convert to fraction form
    71,313.56/98,405.90 = 42,627.52/x
  3. Step 3: Cross multiply
    71,313.56x = 98,405.90 × 42,627.52
  4. Step 4: Simplify right side
    71,313.56x = 4,194,799,257.23
  5. Step 5: Solve for x
    x = 4,194,799,257.23/71,313.56
  6. Step 6: Final answer
    x = 58,821.90

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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.