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Finding the Fourth Proportional to 61,661.82, 85,097.79 and 34,806.63

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Solution

The fourth proportional to 61,661.82, 85,097.79 and 34,806.63 is: 48,035.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,661.82 : 85,097.79 = 34,806.63 : x
  2. Step 2: Convert to fraction form
    61,661.82/85,097.79 = 34,806.63/x
  3. Step 3: Cross multiply
    61,661.82x = 85,097.79 × 34,806.63
  4. Step 4: Simplify right side
    61,661.82x = 2,961,967,290.35
  5. Step 5: Solve for x
    x = 2,961,967,290.35/61,661.82
  6. Step 6: Final answer
    x = 48,035.68

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1.5x scale

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.