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Finding the Fourth Proportional to 61,616.47, 92,425.43 and 21,636.45

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Solution

The fourth proportional to 61,616.47, 92,425.43 and 21,636.45 is: 32,454.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,616.47 : 92,425.43 = 21,636.45 : x
  2. Step 2: Convert to fraction form
    61,616.47/92,425.43 = 21,636.45/x
  3. Step 3: Cross multiply
    61,616.47x = 92,425.43 × 21,636.45
  4. Step 4: Simplify right side
    61,616.47x = 1,999,758,194.92
  5. Step 5: Solve for x
    x = 1,999,758,194.92/61,616.47
  6. Step 6: Final answer
    x = 32,454.93

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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.