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Finding the Fourth Proportional to 14,507.67, 19,890.21 and 14,245.23

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Solution

The fourth proportional to 14,507.67, 19,890.21 and 14,245.23 is: 19,530.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,507.67 : 19,890.21 = 14,245.23 : x
  2. Step 2: Convert to fraction form
    14,507.67/19,890.21 = 14,245.23/x
  3. Step 3: Cross multiply
    14,507.67x = 19,890.21 × 14,245.23
  4. Step 4: Simplify right side
    14,507.67x = 283,340,594.70
  5. Step 5: Solve for x
    x = 283,340,594.70/14,507.67
  6. Step 6: Final answer
    x = 19,530.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.