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Finding the Fourth Proportional to 61,926, 85,457.88 and 33,631.92

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Solution

The fourth proportional to 61,926, 85,457.88 and 33,631.92 is: 46,412.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,926 : 85,457.88 = 33,631.92 : x
  2. Step 2: Convert to fraction form
    61,926/85,457.88 = 33,631.92/x
  3. Step 3: Cross multiply
    61,926x = 85,457.88 × 33,631.92
  4. Step 4: Simplify right side
    61,926x = 2,874,112,583.53
  5. Step 5: Solve for x
    x = 2,874,112,583.53/61,926
  6. Step 6: Final answer
    x = 46,412.05

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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.