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Finding the Fourth Proportional to 13,624.93, 18,803.45 and 7,883.43

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Solution

The fourth proportional to 13,624.93, 18,803.45 and 7,883.43 is: 10,879.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,624.93 : 18,803.45 = 7,883.43 : x
  2. Step 2: Convert to fraction form
    13,624.93/18,803.45 = 7,883.43/x
  3. Step 3: Cross multiply
    13,624.93x = 18,803.45 × 7,883.43
  4. Step 4: Simplify right side
    13,624.93x = 148,235,642.12
  5. Step 5: Solve for x
    x = 148,235,642.12/13,624.93
  6. Step 6: Final answer
    x = 10,879.73

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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.