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Finding the Fourth Proportional to 63,595.80, 87,709.50 and 47,715.48

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Solution

The fourth proportional to 63,595.80, 87,709.50 and 47,715.48 is: 65,807.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,595.80 : 87,709.50 = 47,715.48 : x
  2. Step 2: Convert to fraction form
    63,595.80/87,709.50 = 47,715.48/x
  3. Step 3: Cross multiply
    63,595.80x = 87,709.50 × 47,715.48
  4. Step 4: Simplify right side
    63,595.80x = 4,185,100,893.06
  5. Step 5: Solve for x
    x = 4,185,100,893.06/63,595.80
  6. Step 6: Final answer
    x = 65,807.82

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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.