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Finding the Fourth Proportional to 63,485.61, 87,604.64 and 36,261.57

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Solution

The fourth proportional to 63,485.61, 87,604.64 and 36,261.57 is: 50,037.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,485.61 : 87,604.64 = 36,261.57 : x
  2. Step 2: Convert to fraction form
    63,485.61/87,604.64 = 36,261.57/x
  3. Step 3: Cross multiply
    63,485.61x = 87,604.64 × 36,261.57
  4. Step 4: Simplify right side
    63,485.61x = 3,176,682,068.88
  5. Step 5: Solve for x
    x = 3,176,682,068.88/63,485.61
  6. Step 6: Final answer
    x = 50,037.83

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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.