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Finding the Fourth Proportional to 71,341.80, 106,935.90 and 26,951.40

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Solution

The fourth proportional to 71,341.80, 106,935.90 and 26,951.40 is: 40,398.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,341.80 : 106,935.90 = 26,951.40 : x
  2. Step 2: Convert to fraction form
    71,341.80/106,935.90 = 26,951.40/x
  3. Step 3: Cross multiply
    71,341.80x = 106,935.90 × 26,951.40
  4. Step 4: Simplify right side
    71,341.80x = 2,882,072,215.26
  5. Step 5: Solve for x
    x = 2,882,072,215.26/71,341.80
  6. Step 6: Final answer
    x = 40,398.09

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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.