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Finding the Fourth Proportional to 9,883.65, 14,825.50 and 3,309.86

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Solution

The fourth proportional to 9,883.65, 14,825.50 and 3,309.86 is: 4,964.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,883.65 : 14,825.50 = 3,309.86 : x
  2. Step 2: Convert to fraction form
    9,883.65/14,825.50 = 3,309.86/x
  3. Step 3: Cross multiply
    9,883.65x = 14,825.50 × 3,309.86
  4. Step 4: Simplify right side
    9,883.65x = 49,070,358.22
  5. Step 5: Solve for x
    x = 49,070,358.22/9,883.65
  6. Step 6: Final answer
    x = 4,964.80

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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.