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Finding the Fourth Proportional to 55,630.88, 76,773.88 and 31,765.04

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Solution

The fourth proportional to 55,630.88, 76,773.88 and 31,765.04 is: 43,837.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,630.88 : 76,773.88 = 31,765.04 : x
  2. Step 2: Convert to fraction form
    55,630.88/76,773.88 = 31,765.04/x
  3. Step 3: Cross multiply
    55,630.88x = 76,773.88 × 31,765.04
  4. Step 4: Simplify right side
    55,630.88x = 2,438,725,369.16
  5. Step 5: Solve for x
    x = 2,438,725,369.16/55,630.88
  6. Step 6: Final answer
    x = 43,837.62

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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.