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Finding the Fourth Proportional to 42,992.97, 64,455.53 and 27,164.64

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Solution

The fourth proportional to 42,992.97, 64,455.53 and 27,164.64 is: 40,725.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,992.97 : 64,455.53 = 27,164.64 : x
  2. Step 2: Convert to fraction form
    42,992.97/64,455.53 = 27,164.64/x
  3. Step 3: Cross multiply
    42,992.97x = 64,455.53 × 27,164.64
  4. Step 4: Simplify right side
    42,992.97x = 1,750,911,107.32
  5. Step 5: Solve for x
    x = 1,750,911,107.32/42,992.97
  6. Step 6: Final answer
    x = 40,725.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.