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Finding the Fourth Proportional to 61,093.74, 91,640.74 and 16,720.94

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Solution

The fourth proportional to 61,093.74, 91,640.74 and 16,720.94 is: 25,081.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,093.74 : 91,640.74 = 16,720.94 : x
  2. Step 2: Convert to fraction form
    61,093.74/91,640.74 = 16,720.94/x
  3. Step 3: Cross multiply
    61,093.74x = 91,640.74 × 16,720.94
  4. Step 4: Simplify right side
    61,093.74x = 1,532,319,315.10
  5. Step 5: Solve for x
    x = 1,532,319,315.10/61,093.74
  6. Step 6: Final answer
    x = 25,081.45

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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.