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Finding the Fourth Proportional to 63,072.56, 87,007.56 and 39,190.16

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Solution

The fourth proportional to 63,072.56, 87,007.56 and 39,190.16 is: 54,062.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,072.56 : 87,007.56 = 39,190.16 : x
  2. Step 2: Convert to fraction form
    63,072.56/87,007.56 = 39,190.16/x
  3. Step 3: Cross multiply
    63,072.56x = 87,007.56 × 39,190.16
  4. Step 4: Simplify right side
    63,072.56x = 3,409,840,197.61
  5. Step 5: Solve for x
    x = 3,409,840,197.61/63,072.56
  6. Step 6: Final answer
    x = 54,062.18

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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.