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Finding the Fourth Proportional to 19,792.17, 29,666.79 and 9,907.61

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Solution

The fourth proportional to 19,792.17, 29,666.79 and 9,907.61 is: 14,850.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,792.17 : 29,666.79 = 9,907.61 : x
  2. Step 2: Convert to fraction form
    19,792.17/29,666.79 = 9,907.61/x
  3. Step 3: Cross multiply
    19,792.17x = 29,666.79 × 9,907.61
  4. Step 4: Simplify right side
    19,792.17x = 293,926,836.94
  5. Step 5: Solve for x
    x = 293,926,836.94/19,792.17
  6. Step 6: Final answer
    x = 14,850.66

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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.