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Finding the Fourth Proportional to 63,970.74, 95,911.20 and 21,830.94

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Solution

The fourth proportional to 63,970.74, 95,911.20 and 21,830.94 is: 32,731.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,970.74 : 95,911.20 = 21,830.94 : x
  2. Step 2: Convert to fraction form
    63,970.74/95,911.20 = 21,830.94/x
  3. Step 3: Cross multiply
    63,970.74x = 95,911.20 × 21,830.94
  4. Step 4: Simplify right side
    63,970.74x = 2,093,831,652.53
  5. Step 5: Solve for x
    x = 2,093,831,652.53/63,970.74
  6. Step 6: Final answer
    x = 32,731.08

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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.