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Finding the Fourth Proportional to 14,515.15, 21,716.02 and 12,746.11

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Solution

The fourth proportional to 14,515.15, 21,716.02 and 12,746.11 is: 19,069.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,515.15 : 21,716.02 = 12,746.11 : x
  2. Step 2: Convert to fraction form
    14,515.15/21,716.02 = 12,746.11/x
  3. Step 3: Cross multiply
    14,515.15x = 21,716.02 × 12,746.11
  4. Step 4: Simplify right side
    14,515.15x = 276,794,779.68
  5. Step 5: Solve for x
    x = 276,794,779.68/14,515.15
  6. Step 6: Final answer
    x = 19,069.37

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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.