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Finding the Fourth Proportional to 18,159.17, 25,043.01 and 11,779.12

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Solution

The fourth proportional to 18,159.17, 25,043.01 and 11,779.12 is: 16,244.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,159.17 : 25,043.01 = 11,779.12 : x
  2. Step 2: Convert to fraction form
    18,159.17/25,043.01 = 11,779.12/x
  3. Step 3: Cross multiply
    18,159.17x = 25,043.01 × 11,779.12
  4. Step 4: Simplify right side
    18,159.17x = 294,984,494.74
  5. Step 5: Solve for x
    x = 294,984,494.74/18,159.17
  6. Step 6: Final answer
    x = 16,244.38

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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.