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Finding the Fourth Proportional to 66,672.87, 100,009.31 and 26,710.04

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Solution

The fourth proportional to 66,672.87, 100,009.31 and 26,710.04 is: 40,065.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,672.87 : 100,009.31 = 26,710.04 : x
  2. Step 2: Convert to fraction form
    66,672.87/100,009.31 = 26,710.04/x
  3. Step 3: Cross multiply
    66,672.87x = 100,009.31 × 26,710.04
  4. Step 4: Simplify right side
    66,672.87x = 2,671,252,036.88
  5. Step 5: Solve for x
    x = 2,671,252,036.88/66,672.87
  6. Step 6: Final answer
    x = 40,065.05

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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.