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Finding the Fourth Proportional to 64,421.91, 96,639.51 and 22,301.91

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Solution

The fourth proportional to 64,421.91, 96,639.51 and 22,301.91 is: 33,455.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,421.91 : 96,639.51 = 22,301.91 : x
  2. Step 2: Convert to fraction form
    64,421.91/96,639.51 = 22,301.91/x
  3. Step 3: Cross multiply
    64,421.91x = 96,639.51 × 22,301.91
  4. Step 4: Simplify right side
    64,421.91x = 2,155,245,654.46
  5. Step 5: Solve for x
    x = 2,155,245,654.46/64,421.91
  6. Step 6: Final answer
    x = 33,455.17

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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.