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Finding the Fourth Proportional to 61,982.84, 85,536.84 and 33,688.52

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Solution

The fourth proportional to 61,982.84, 85,536.84 and 33,688.52 is: 46,490.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,982.84 : 85,536.84 = 33,688.52 : x
  2. Step 2: Convert to fraction form
    61,982.84/85,536.84 = 33,688.52/x
  3. Step 3: Cross multiply
    61,982.84x = 85,536.84 × 33,688.52
  4. Step 4: Simplify right side
    61,982.84x = 2,881,609,545.08
  5. Step 5: Solve for x
    x = 2,881,609,545.08/61,982.84
  6. Step 6: Final answer
    x = 46,490.44

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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.