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Finding the Fourth Proportional to 91,327.50, 126,032.22 and 51,583.50

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Solution

The fourth proportional to 91,327.50, 126,032.22 and 51,583.50 is: 71,185.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,327.50 : 126,032.22 = 51,583.50 : x
  2. Step 2: Convert to fraction form
    91,327.50/126,032.22 = 51,583.50/x
  3. Step 3: Cross multiply
    91,327.50x = 126,032.22 × 51,583.50
  4. Step 4: Simplify right side
    91,327.50x = 6,501,183,020.37
  5. Step 5: Solve for x
    x = 6,501,183,020.37/91,327.50
  6. Step 6: Final answer
    x = 71,185.38

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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.