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Finding the Fourth Proportional to 66,292.68, 99,401.96 and 21,907.52

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Solution

The fourth proportional to 66,292.68, 99,401.96 and 21,907.52 is: 32,849.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,292.68 : 99,401.96 = 21,907.52 : x
  2. Step 2: Convert to fraction form
    66,292.68/99,401.96 = 21,907.52/x
  3. Step 3: Cross multiply
    66,292.68x = 99,401.96 × 21,907.52
  4. Step 4: Simplify right side
    66,292.68x = 2,177,650,426.74
  5. Step 5: Solve for x
    x = 2,177,650,426.74/66,292.68
  6. Step 6: Final answer
    x = 32,849.03

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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.