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Finding the Fourth Proportional to 61,407.72, 84,736.62 and 34,549.62

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Solution

The fourth proportional to 61,407.72, 84,736.62 and 34,549.62 is: 47,675.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,407.72 : 84,736.62 = 34,549.62 : x
  2. Step 2: Convert to fraction form
    61,407.72/84,736.62 = 34,549.62/x
  3. Step 3: Cross multiply
    61,407.72x = 84,736.62 × 34,549.62
  4. Step 4: Simplify right side
    61,407.72x = 2,927,618,021.08
  5. Step 5: Solve for x
    x = 2,927,618,021.08/61,407.72
  6. Step 6: Final answer
    x = 47,675.08

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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.