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Finding the Fourth Proportional to 14,019.84, 19,338.84 and 8,350.86

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Solution

The fourth proportional to 14,019.84, 19,338.84 and 8,350.86 is: 11,519.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,019.84 : 19,338.84 = 8,350.86 : x
  2. Step 2: Convert to fraction form
    14,019.84/19,338.84 = 8,350.86/x
  3. Step 3: Cross multiply
    14,019.84x = 19,338.84 × 8,350.86
  4. Step 4: Simplify right side
    14,019.84x = 161,495,945.40
  5. Step 5: Solve for x
    x = 161,495,945.40/14,019.84
  6. Step 6: Final answer
    x = 11,519.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.