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Finding the Fourth Proportional to 9,933.40, 14,902.10 and 2,913.40

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Solution

The fourth proportional to 9,933.40, 14,902.10 and 2,913.40 is: 4,370.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,933.40 : 14,902.10 = 2,913.40 : x
  2. Step 2: Convert to fraction form
    9,933.40/14,902.10 = 2,913.40/x
  3. Step 3: Cross multiply
    9,933.40x = 14,902.10 × 2,913.40
  4. Step 4: Simplify right side
    9,933.40x = 43,415,778.14
  5. Step 5: Solve for x
    x = 43,415,778.14/9,933.40
  6. Step 6: Final answer
    x = 4,370.69

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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.