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Finding the Fourth Proportional to 18,179.58, 27,269.40 and 5,031.99

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Solution

The fourth proportional to 18,179.58, 27,269.40 and 5,031.99 is: 7,547.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,179.58 : 27,269.40 = 5,031.99 : x
  2. Step 2: Convert to fraction form
    18,179.58/27,269.40 = 5,031.99/x
  3. Step 3: Cross multiply
    18,179.58x = 27,269.40 × 5,031.99
  4. Step 4: Simplify right side
    18,179.58x = 137,219,348.11
  5. Step 5: Solve for x
    x = 137,219,348.11/18,179.58
  6. Step 6: Final answer
    x = 7,547.99

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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.