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Finding the Fourth Proportional to 40,894.20, 57,383.10 and 40,894.20

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Solution

The fourth proportional to 40,894.20, 57,383.10 and 40,894.20 is: 57,383.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,894.20 : 57,383.10 = 40,894.20 : x
  2. Step 2: Convert to fraction form
    40,894.20/57,383.10 = 40,894.20/x
  3. Step 3: Cross multiply
    40,894.20x = 57,383.10 × 40,894.20
  4. Step 4: Simplify right side
    40,894.20x = 2,346,635,968.02
  5. Step 5: Solve for x
    x = 2,346,635,968.02/40,894.20
  6. Step 6: Final answer
    x = 57,383.10

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.