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Finding the Fourth Proportional to 61,960.68, 85,503.42 and 33,665.40

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Solution

The fourth proportional to 61,960.68, 85,503.42 and 33,665.40 is: 46,456.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,960.68 : 85,503.42 = 33,665.40 : x
  2. Step 2: Convert to fraction form
    61,960.68/85,503.42 = 33,665.40/x
  3. Step 3: Cross multiply
    61,960.68x = 85,503.42 × 33,665.40
  4. Step 4: Simplify right side
    61,960.68x = 2,878,506,835.67
  5. Step 5: Solve for x
    x = 2,878,506,835.67/61,960.68
  6. Step 6: Final answer
    x = 46,456.99

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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.