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Finding the Fourth Proportional to 73,931.56, 110,906.55 and 28,947.11

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Solution

The fourth proportional to 73,931.56, 110,906.55 and 28,947.11 is: 43,424.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,931.56 : 110,906.55 = 28,947.11 : x
  2. Step 2: Convert to fraction form
    73,931.56/110,906.55 = 28,947.11/x
  3. Step 3: Cross multiply
    73,931.56x = 110,906.55 × 28,947.11
  4. Step 4: Simplify right side
    73,931.56x = 3,210,423,548.04
  5. Step 5: Solve for x
    x = 3,210,423,548.04/73,931.56
  6. Step 6: Final answer
    x = 43,424.27

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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.