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Finding the Fourth Proportional to 14,039.73, 19,375.07 and 7,666.65

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Solution

The fourth proportional to 14,039.73, 19,375.07 and 7,666.65 is: 10,580.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,039.73 : 19,375.07 = 7,666.65 : x
  2. Step 2: Convert to fraction form
    14,039.73/19,375.07 = 7,666.65/x
  3. Step 3: Cross multiply
    14,039.73x = 19,375.07 × 7,666.65
  4. Step 4: Simplify right side
    14,039.73x = 148,541,842.08
  5. Step 5: Solve for x
    x = 148,541,842.08/14,039.73
  6. Step 6: Final answer
    x = 10,580.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.