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Finding the Fourth Proportional to 64,397.01, 96,607.41 and 20,020.89

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Solution

The fourth proportional to 64,397.01, 96,607.41 and 20,020.89 is: 30,035.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,397.01 : 96,607.41 = 20,020.89 : x
  2. Step 2: Convert to fraction form
    64,397.01/96,607.41 = 20,020.89/x
  3. Step 3: Cross multiply
    64,397.01x = 96,607.41 × 20,020.89
  4. Step 4: Simplify right side
    64,397.01x = 1,934,166,328.79
  5. Step 5: Solve for x
    x = 1,934,166,328.79/64,397.01
  6. Step 6: Final answer
    x = 30,035.03

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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.