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Finding the Fourth Proportional to 52,970.40, 73,105.66 and 30,614.40

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Solution

The fourth proportional to 52,970.40, 73,105.66 and 30,614.40 is: 42,251.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,970.40 : 73,105.66 = 30,614.40 : x
  2. Step 2: Convert to fraction form
    52,970.40/73,105.66 = 30,614.40/x
  3. Step 3: Cross multiply
    52,970.40x = 73,105.66 × 30,614.40
  4. Step 4: Simplify right side
    52,970.40x = 2,238,085,917.50
  5. Step 5: Solve for x
    x = 2,238,085,917.50/52,970.40
  6. Step 6: Final answer
    x = 42,251.63

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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.