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Finding the Fourth Proportional to 14,339.50, 19,779.93 and 9,025.09

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Solution

The fourth proportional to 14,339.50, 19,779.93 and 9,025.09 is: 12,449.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,339.50 : 19,779.93 = 9,025.09 : x
  2. Step 2: Convert to fraction form
    14,339.50/19,779.93 = 9,025.09/x
  3. Step 3: Cross multiply
    14,339.50x = 19,779.93 × 9,025.09
  4. Step 4: Simplify right side
    14,339.50x = 178,515,648.44
  5. Step 5: Solve for x
    x = 178,515,648.44/14,339.50
  6. Step 6: Final answer
    x = 12,449.22

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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.