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Finding the Fourth Proportional to 61,987.69, 85,542.60 and 33,693.38

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Solution

The fourth proportional to 61,987.69, 85,542.60 and 33,693.38 is: 46,496.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,987.69 : 85,542.60 = 33,693.38 : x
  2. Step 2: Convert to fraction form
    61,987.69/85,542.60 = 33,693.38/x
  3. Step 3: Cross multiply
    61,987.69x = 85,542.60 × 33,693.38
  4. Step 4: Simplify right side
    61,987.69x = 2,882,219,327.99
  5. Step 5: Solve for x
    x = 2,882,219,327.99/61,987.69
  6. Step 6: Final answer
    x = 46,496.64

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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.