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Finding the Fourth Proportional to 14,010.72, 19,334.76 and 7,723.12

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Solution

The fourth proportional to 14,010.72, 19,334.76 and 7,723.12 is: 10,657.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,010.72 : 19,334.76 = 7,723.12 : x
  2. Step 2: Convert to fraction form
    14,010.72/19,334.76 = 7,723.12/x
  3. Step 3: Cross multiply
    14,010.72x = 19,334.76 × 7,723.12
  4. Step 4: Simplify right side
    14,010.72x = 149,324,671.65
  5. Step 5: Solve for x
    x = 149,324,671.65/14,010.72
  6. Step 6: Final answer
    x = 10,657.89

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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.