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Finding the Fourth Proportional to 84,841.92, 117,082.56 and 47,116.80

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Solution

The fourth proportional to 84,841.92, 117,082.56 and 47,116.80 is: 65,021.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,841.92 : 117,082.56 = 47,116.80 : x
  2. Step 2: Convert to fraction form
    84,841.92/117,082.56 = 47,116.80/x
  3. Step 3: Cross multiply
    84,841.92x = 117,082.56 × 47,116.80
  4. Step 4: Simplify right side
    84,841.92x = 5,516,555,563.01
  5. Step 5: Solve for x
    x = 5,516,555,563.01/84,841.92
  6. Step 6: Final answer
    x = 65,021.58

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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.