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Finding the Fourth Proportional to 51,345.50, 70,856.79 and 27,793.50

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Solution

The fourth proportional to 51,345.50, 70,856.79 and 27,793.50 is: 38,355.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,345.50 : 70,856.79 = 27,793.50 : x
  2. Step 2: Convert to fraction form
    51,345.50/70,856.79 = 27,793.50/x
  3. Step 3: Cross multiply
    51,345.50x = 70,856.79 × 27,793.50
  4. Step 4: Simplify right side
    51,345.50x = 1,969,358,192.87
  5. Step 5: Solve for x
    x = 1,969,358,192.87/51,345.50
  6. Step 6: Final answer
    x = 38,355.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.