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Finding the Fourth Proportional to 73,093.40, 109,640.10 and 17,689.40

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Solution

The fourth proportional to 73,093.40, 109,640.10 and 17,689.40 is: 26,534.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,093.40 : 109,640.10 = 17,689.40 : x
  2. Step 2: Convert to fraction form
    73,093.40/109,640.10 = 17,689.40/x
  3. Step 3: Cross multiply
    73,093.40x = 109,640.10 × 17,689.40
  4. Step 4: Simplify right side
    73,093.40x = 1,939,467,036.74
  5. Step 5: Solve for x
    x = 1,939,467,036.74/73,093.40
  6. Step 6: Final answer
    x = 26,534.09

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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.