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Finding the Fourth Proportional to 63,261.88, 87,298.79 and 36,405.34

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Solution

The fourth proportional to 63,261.88, 87,298.79 and 36,405.34 is: 50,237.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,261.88 : 87,298.79 = 36,405.34 : x
  2. Step 2: Convert to fraction form
    63,261.88/87,298.79 = 36,405.34/x
  3. Step 3: Cross multiply
    63,261.88x = 87,298.79 × 36,405.34
  4. Step 4: Simplify right side
    63,261.88x = 3,178,141,731.26
  5. Step 5: Solve for x
    x = 3,178,141,731.26/63,261.88
  6. Step 6: Final answer
    x = 50,237.87

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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.