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Finding the Fourth Proportional to 18,779.98, 25,922.16 and 10,827.52

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Solution

The fourth proportional to 18,779.98, 25,922.16 and 10,827.52 is: 14,945.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,779.98 : 25,922.16 = 10,827.52 : x
  2. Step 2: Convert to fraction form
    18,779.98/25,922.16 = 10,827.52/x
  3. Step 3: Cross multiply
    18,779.98x = 25,922.16 × 10,827.52
  4. Step 4: Simplify right side
    18,779.98x = 280,672,705.84
  5. Step 5: Solve for x
    x = 280,672,705.84/18,779.98
  6. Step 6: Final answer
    x = 14,945.31

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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.