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Finding the Fourth Proportional to 64,402.65, 96,585.51 and 21,703.43

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Solution

The fourth proportional to 64,402.65, 96,585.51 and 21,703.43 is: 32,548.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,402.65 : 96,585.51 = 21,703.43 : x
  2. Step 2: Convert to fraction form
    64,402.65/96,585.51 = 21,703.43/x
  3. Step 3: Cross multiply
    64,402.65x = 96,585.51 × 21,703.43
  4. Step 4: Simplify right side
    64,402.65x = 2,096,236,634.86
  5. Step 5: Solve for x
    x = 2,096,236,634.86/64,402.65
  6. Step 6: Final answer
    x = 32,548.92

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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.