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Finding the Fourth Proportional to 18,364.83, 27,547.43 and 7,274.22

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Solution

The fourth proportional to 18,364.83, 27,547.43 and 7,274.22 is: 10,911.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,364.83 : 27,547.43 = 7,274.22 : x
  2. Step 2: Convert to fraction form
    18,364.83/27,547.43 = 7,274.22/x
  3. Step 3: Cross multiply
    18,364.83x = 27,547.43 × 7,274.22
  4. Step 4: Simplify right side
    18,364.83x = 200,386,029.88
  5. Step 5: Solve for x
    x = 200,386,029.88/18,364.83
  6. Step 6: Final answer
    x = 10,911.40

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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.