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Finding the Fourth Proportional to 42,006.40, 62,936.70 and 27,207.70

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Solution

The fourth proportional to 42,006.40, 62,936.70 and 27,207.70 is: 40,764.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,006.40 : 62,936.70 = 27,207.70 : x
  2. Step 2: Convert to fraction form
    42,006.40/62,936.70 = 27,207.70/x
  3. Step 3: Cross multiply
    42,006.40x = 62,936.70 × 27,207.70
  4. Step 4: Simplify right side
    42,006.40x = 1,712,362,852.59
  5. Step 5: Solve for x
    x = 1,712,362,852.59/42,006.40
  6. Step 6: Final answer
    x = 40,764.33

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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.