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Finding the Fourth Proportional to 63,246.16, 94,878.96 and 21,113.20

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Solution

The fourth proportional to 63,246.16, 94,878.96 and 21,113.20 is: 31,673.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,246.16 : 94,878.96 = 21,113.20 : x
  2. Step 2: Convert to fraction form
    63,246.16/94,878.96 = 21,113.20/x
  3. Step 3: Cross multiply
    63,246.16x = 94,878.96 × 21,113.20
  4. Step 4: Simplify right side
    63,246.16x = 2,003,198,458.27
  5. Step 5: Solve for x
    x = 2,003,198,458.27/63,246.16
  6. Step 6: Final answer
    x = 31,673.04

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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.