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Finding the Fourth Proportional to 40,832.75, 61,264.97 and 15,890.32

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Solution

The fourth proportional to 40,832.75, 61,264.97 and 15,890.32 is: 23,841.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,832.75 : 61,264.97 = 15,890.32 : x
  2. Step 2: Convert to fraction form
    40,832.75/61,264.97 = 15,890.32/x
  3. Step 3: Cross multiply
    40,832.75x = 61,264.97 × 15,890.32
  4. Step 4: Simplify right side
    40,832.75x = 973,519,824.93
  5. Step 5: Solve for x
    x = 973,519,824.93/40,832.75
  6. Step 6: Final answer
    x = 23,841.64

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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.