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Finding the Fourth Proportional to 61,457.59, 84,819.55 and 34,605.33

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Solution

The fourth proportional to 61,457.59, 84,819.55 and 34,605.33 is: 47,759.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,457.59 : 84,819.55 = 34,605.33 : x
  2. Step 2: Convert to fraction form
    61,457.59/84,819.55 = 34,605.33/x
  3. Step 3: Cross multiply
    61,457.59x = 84,819.55 × 34,605.33
  4. Step 4: Simplify right side
    61,457.59x = 2,935,208,081.17
  5. Step 5: Solve for x
    x = 2,935,208,081.17/61,457.59
  6. Step 6: Final answer
    x = 47,759.90

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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.