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Finding the Fourth Proportional to 28,004.92, 41,938.44 and 18,113.92

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Solution

The fourth proportional to 28,004.92, 41,938.44 and 18,113.92 is: 27,126.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,004.92 : 41,938.44 = 18,113.92 : x
  2. Step 2: Convert to fraction form
    28,004.92/41,938.44 = 18,113.92/x
  3. Step 3: Cross multiply
    28,004.92x = 41,938.44 × 18,113.92
  4. Step 4: Simplify right side
    28,004.92x = 759,669,547.08
  5. Step 5: Solve for x
    x = 759,669,547.08/28,004.92
  6. Step 6: Final answer
    x = 27,126.29

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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.