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Finding the Fourth Proportional to 61,809.21, 92,712.06 and 17,434.98

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Solution

The fourth proportional to 61,809.21, 92,712.06 and 17,434.98 is: 26,151.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,809.21 : 92,712.06 = 17,434.98 : x
  2. Step 2: Convert to fraction form
    61,809.21/92,712.06 = 17,434.98/x
  3. Step 3: Cross multiply
    61,809.21x = 92,712.06 × 17,434.98
  4. Step 4: Simplify right side
    61,809.21x = 1,616,432,911.86
  5. Step 5: Solve for x
    x = 1,616,432,911.86/61,809.21
  6. Step 6: Final answer
    x = 26,151.97

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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.