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Finding the Fourth Proportional to 61,964.81, 85,512.10 and 33,670.49

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Solution

The fourth proportional to 61,964.81, 85,512.10 and 33,670.49 is: 46,465.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,964.81 : 85,512.10 = 33,670.49 : x
  2. Step 2: Convert to fraction form
    61,964.81/85,512.10 = 33,670.49/x
  3. Step 3: Cross multiply
    61,964.81x = 85,512.10 × 33,670.49
  4. Step 4: Simplify right side
    61,964.81x = 2,879,234,307.93
  5. Step 5: Solve for x
    x = 2,879,234,307.93/61,964.81
  6. Step 6: Final answer
    x = 46,465.64

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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.