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Finding the Fourth Proportional to 63,745.32, 87,969.06 and 35,450.40

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Solution

The fourth proportional to 63,745.32, 87,969.06 and 35,450.40 is: 48,921.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,745.32 : 87,969.06 = 35,450.40 : x
  2. Step 2: Convert to fraction form
    63,745.32/87,969.06 = 35,450.40/x
  3. Step 3: Cross multiply
    63,745.32x = 87,969.06 × 35,450.40
  4. Step 4: Simplify right side
    63,745.32x = 3,118,538,364.62
  5. Step 5: Solve for x
    x = 3,118,538,364.62/63,745.32
  6. Step 6: Final answer
    x = 48,921.84

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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.