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Finding the Fourth Proportional to 63,311.86, 94,920.63 and 21,167.01

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Solution

The fourth proportional to 63,311.86, 94,920.63 and 21,167.01 is: 31,734.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,311.86 : 94,920.63 = 21,167.01 : x
  2. Step 2: Convert to fraction form
    63,311.86/94,920.63 = 21,167.01/x
  3. Step 3: Cross multiply
    63,311.86x = 94,920.63 × 21,167.01
  4. Step 4: Simplify right side
    63,311.86x = 2,009,185,845.04
  5. Step 5: Solve for x
    x = 2,009,185,845.04/63,311.86
  6. Step 6: Final answer
    x = 31,734.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.