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Finding the Fourth Proportional to 70,691.58, 106,036.82 and 17,383.32

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Solution

The fourth proportional to 70,691.58, 106,036.82 and 17,383.32 is: 26,074.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,691.58 : 106,036.82 = 17,383.32 : x
  2. Step 2: Convert to fraction form
    70,691.58/106,036.82 = 17,383.32/x
  3. Step 3: Cross multiply
    70,691.58x = 106,036.82 × 17,383.32
  4. Step 4: Simplify right side
    70,691.58x = 1,843,271,973.84
  5. Step 5: Solve for x
    x = 1,843,271,973.84/70,691.58
  6. Step 6: Final answer
    x = 26,074.84

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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.