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Finding the Fourth Proportional to 9,998.02, 14,986.99 and 3,419.70

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Solution

The fourth proportional to 9,998.02, 14,986.99 and 3,419.70 is: 5,126.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,998.02 : 14,986.99 = 3,419.70 : x
  2. Step 2: Convert to fraction form
    9,998.02/14,986.99 = 3,419.70/x
  3. Step 3: Cross multiply
    9,998.02x = 14,986.99 × 3,419.70
  4. Step 4: Simplify right side
    9,998.02x = 51,251,009.70
  5. Step 5: Solve for x
    x = 51,251,009.70/9,998.02
  6. Step 6: Final answer
    x = 5,126.12

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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.