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Finding the Fourth Proportional to 84,884.40, 127,819.80 and 62,853.84

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Solution

The fourth proportional to 84,884.40, 127,819.80 and 62,853.84 is: 94,645.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,884.40 : 127,819.80 = 62,853.84 : x
  2. Step 2: Convert to fraction form
    84,884.40/127,819.80 = 62,853.84/x
  3. Step 3: Cross multiply
    84,884.40x = 127,819.80 × 62,853.84
  4. Step 4: Simplify right side
    84,884.40x = 8,033,965,258.03
  5. Step 5: Solve for x
    x = 8,033,965,258.03/84,884.40
  6. Step 6: Final answer
    x = 94,645.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.