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Finding the Fourth Proportional to 61,683, 85,122.54 and 33,388.89

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Solution

The fourth proportional to 61,683, 85,122.54 and 33,388.89 is: 46,076.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,683 : 85,122.54 = 33,388.89 : x
  2. Step 2: Convert to fraction form
    61,683/85,122.54 = 33,388.89/x
  3. Step 3: Cross multiply
    61,683x = 85,122.54 × 33,388.89
  4. Step 4: Simplify right side
    61,683x = 2,842,147,124.58
  5. Step 5: Solve for x
    x = 2,842,147,124.58/61,683
  6. Step 6: Final answer
    x = 46,076.67

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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.