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Finding the Fourth Proportional to 14,407.76, 21,567.90 and 13,926.62

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Solution

The fourth proportional to 14,407.76, 21,567.90 and 13,926.62 is: 20,847.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,407.76 : 21,567.90 = 13,926.62 : x
  2. Step 2: Convert to fraction form
    14,407.76/21,567.90 = 13,926.62/x
  3. Step 3: Cross multiply
    14,407.76x = 21,567.90 × 13,926.62
  4. Step 4: Simplify right side
    14,407.76x = 300,367,947.50
  5. Step 5: Solve for x
    x = 300,367,947.50/14,407.76
  6. Step 6: Final answer
    x = 20,847.65

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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.