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Finding the Fourth Proportional to 55,771.41, 76,968.41 and 31,572.39

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Solution

The fourth proportional to 55,771.41, 76,968.41 and 31,572.39 is: 43,572.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,771.41 : 76,968.41 = 31,572.39 : x
  2. Step 2: Convert to fraction form
    55,771.41/76,968.41 = 31,572.39/x
  3. Step 3: Cross multiply
    55,771.41x = 76,968.41 × 31,572.39
  4. Step 4: Simplify right side
    55,771.41x = 2,430,076,500.34
  5. Step 5: Solve for x
    x = 2,430,076,500.34/55,771.41
  6. Step 6: Final answer
    x = 43,572.08

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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.