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Finding the Fourth Proportional to 71,605.58, 98,802.68 and 41,379.83

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Solution

The fourth proportional to 71,605.58, 98,802.68 and 41,379.83 is: 57,096.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,605.58 : 98,802.68 = 41,379.83 : x
  2. Step 2: Convert to fraction form
    71,605.58/98,802.68 = 41,379.83/x
  3. Step 3: Cross multiply
    71,605.58x = 98,802.68 × 41,379.83
  4. Step 4: Simplify right side
    71,605.58x = 4,088,437,401.03
  5. Step 5: Solve for x
    x = 4,088,437,401.03/71,605.58
  6. Step 6: Final answer
    x = 57,096.63

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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.