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Finding the Fourth Proportional to 14,339.87, 19,780.99 and 9,025.46

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Solution

The fourth proportional to 14,339.87, 19,780.99 and 9,025.46 is: 12,450.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,339.87 : 19,780.99 = 9,025.46 : x
  2. Step 2: Convert to fraction form
    14,339.87/19,780.99 = 9,025.46/x
  3. Step 3: Cross multiply
    14,339.87x = 19,780.99 × 9,025.46
  4. Step 4: Simplify right side
    14,339.87x = 178,532,435.10
  5. Step 5: Solve for x
    x = 178,532,435.10/14,339.87
  6. Step 6: Final answer
    x = 12,450.08

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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.