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Finding the Fourth Proportional to 61,580.64, 84,982.22 and 36,080.90

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Solution

The fourth proportional to 61,580.64, 84,982.22 and 36,080.90 is: 49,792.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,580.64 : 84,982.22 = 36,080.90 : x
  2. Step 2: Convert to fraction form
    61,580.64/84,982.22 = 36,080.90/x
  3. Step 3: Cross multiply
    61,580.64x = 84,982.22 × 36,080.90
  4. Step 4: Simplify right side
    61,580.64x = 3,066,234,981.60
  5. Step 5: Solve for x
    x = 3,066,234,981.60/61,580.64
  6. Step 6: Final answer
    x = 49,792.19

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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.