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Finding the Fourth Proportional to 64,013.94, 96,032.28 and 21,898.68

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Solution

The fourth proportional to 64,013.94, 96,032.28 and 21,898.68 is: 32,851.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,013.94 : 96,032.28 = 21,898.68 : x
  2. Step 2: Convert to fraction form
    64,013.94/96,032.28 = 21,898.68/x
  3. Step 3: Cross multiply
    64,013.94x = 96,032.28 × 21,898.68
  4. Step 4: Simplify right side
    64,013.94x = 2,102,980,169.39
  5. Step 5: Solve for x
    x = 2,102,980,169.39/64,013.94
  6. Step 6: Final answer
    x = 32,851.91

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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.