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Finding the Fourth Proportional to 9,359.72, 14,039.58 and 3,815.72

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Solution

The fourth proportional to 9,359.72, 14,039.58 and 3,815.72 is: 5,723.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,359.72 : 14,039.58 = 3,815.72 : x
  2. Step 2: Convert to fraction form
    9,359.72/14,039.58 = 3,815.72/x
  3. Step 3: Cross multiply
    9,359.72x = 14,039.58 × 3,815.72
  4. Step 4: Simplify right side
    9,359.72x = 53,571,106.20
  5. Step 5: Solve for x
    x = 53,571,106.20/9,359.72
  6. Step 6: Final answer
    x = 5,723.58

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Similar ratio
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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.