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Finding the Fourth Proportional to 73,688.40, 110,540.70 and 26,951.40

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Solution

The fourth proportional to 73,688.40, 110,540.70 and 26,951.40 is: 40,430.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,688.40 : 110,540.70 = 26,951.40 : x
  2. Step 2: Convert to fraction form
    73,688.40/110,540.70 = 26,951.40/x
  3. Step 3: Cross multiply
    73,688.40x = 110,540.70 × 26,951.40
  4. Step 4: Simplify right side
    73,688.40x = 2,979,226,621.98
  5. Step 5: Solve for x
    x = 2,979,226,621.98/73,688.40
  6. Step 6: Final answer
    x = 40,430.06

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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.