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Finding the Fourth Proportional to 16,779.48, 25,169.24 and 6,916.12

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Solution

The fourth proportional to 16,779.48, 25,169.24 and 6,916.12 is: 10,374.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,779.48 : 25,169.24 = 6,916.12 : x
  2. Step 2: Convert to fraction form
    16,779.48/25,169.24 = 6,916.12/x
  3. Step 3: Cross multiply
    16,779.48x = 25,169.24 × 6,916.12
  4. Step 4: Simplify right side
    16,779.48x = 174,073,484.15
  5. Step 5: Solve for x
    x = 174,073,484.15/16,779.48
  6. Step 6: Final answer
    x = 10,374.19

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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.