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Finding the Fourth Proportional to 73,965.40, 110,948.10 and 27,212.20

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Solution

The fourth proportional to 73,965.40, 110,948.10 and 27,212.20 is: 40,818.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,965.40 : 110,948.10 = 27,212.20 : x
  2. Step 2: Convert to fraction form
    73,965.40/110,948.10 = 27,212.20/x
  3. Step 3: Cross multiply
    73,965.40x = 110,948.10 × 27,212.20
  4. Step 4: Simplify right side
    73,965.40x = 3,019,141,886.82
  5. Step 5: Solve for x
    x = 3,019,141,886.82/73,965.40
  6. Step 6: Final answer
    x = 40,818.30

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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.