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Finding the Fourth Proportional to 61,616.82, 84,883.78 and 58,615.17

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Solution

The fourth proportional to 61,616.82, 84,883.78 and 58,615.17 is: 80,748.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,616.82 : 84,883.78 = 58,615.17 : x
  2. Step 2: Convert to fraction form
    61,616.82/84,883.78 = 58,615.17/x
  3. Step 3: Cross multiply
    61,616.82x = 84,883.78 × 58,615.17
  4. Step 4: Simplify right side
    61,616.82x = 4,975,477,194.94
  5. Step 5: Solve for x
    x = 4,975,477,194.94/61,616.82
  6. Step 6: Final answer
    x = 80,748.69

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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.