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Finding the Fourth Proportional to 67,345.46, 101,009.94 and 17,421.41

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Solution

The fourth proportional to 67,345.46, 101,009.94 and 17,421.41 is: 26,129.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,345.46 : 101,009.94 = 17,421.41 : x
  2. Step 2: Convert to fraction form
    67,345.46/101,009.94 = 17,421.41/x
  3. Step 3: Cross multiply
    67,345.46x = 101,009.94 × 17,421.41
  4. Step 4: Simplify right side
    67,345.46x = 1,759,735,766.01
  5. Step 5: Solve for x
    x = 1,759,735,766.01/67,345.46
  6. Step 6: Final answer
    x = 26,129.98

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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.