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Finding the Fourth Proportional to 55,792.56, 76,999.12 and 31,914.56

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Solution

The fourth proportional to 55,792.56, 76,999.12 and 31,914.56 is: 44,045.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,792.56 : 76,999.12 = 31,914.56 : x
  2. Step 2: Convert to fraction form
    55,792.56/76,999.12 = 31,914.56/x
  3. Step 3: Cross multiply
    55,792.56x = 76,999.12 × 31,914.56
  4. Step 4: Simplify right side
    55,792.56x = 2,457,393,035.19
  5. Step 5: Solve for x
    x = 2,457,393,035.19/55,792.56
  6. Step 6: Final answer
    x = 44,045.17

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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.