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Finding the Fourth Proportional to 61,356.42, 84,669.68 and 34,500.47

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Solution

The fourth proportional to 61,356.42, 84,669.68 and 34,500.47 is: 47,609.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,356.42 : 84,669.68 = 34,500.47 : x
  2. Step 2: Convert to fraction form
    61,356.42/84,669.68 = 34,500.47/x
  3. Step 3: Cross multiply
    61,356.42x = 84,669.68 × 34,500.47
  4. Step 4: Simplify right side
    61,356.42x = 2,921,143,158.90
  5. Step 5: Solve for x
    x = 2,921,143,158.90/61,356.42
  6. Step 6: Final answer
    x = 47,609.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.