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Finding the Fourth Proportional to 9,903.40, 14,855.30 and 3,329.64

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Solution

The fourth proportional to 9,903.40, 14,855.30 and 3,329.64 is: 4,994.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,903.40 : 14,855.30 = 3,329.64 : x
  2. Step 2: Convert to fraction form
    9,903.40/14,855.30 = 3,329.64/x
  3. Step 3: Cross multiply
    9,903.40x = 14,855.30 × 3,329.64
  4. Step 4: Simplify right side
    9,903.40x = 49,462,796.93
  5. Step 5: Solve for x
    x = 49,462,796.93/9,903.40
  6. Step 6: Final answer
    x = 4,994.53

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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.