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Finding the Fourth Proportional to 40,891.92, 61,326.54 and 11,307.48

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Solution

The fourth proportional to 40,891.92, 61,326.54 and 11,307.48 is: 16,958.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,891.92 : 61,326.54 = 11,307.48 : x
  2. Step 2: Convert to fraction form
    40,891.92/61,326.54 = 11,307.48/x
  3. Step 3: Cross multiply
    40,891.92x = 61,326.54 × 11,307.48
  4. Step 4: Simplify right side
    40,891.92x = 693,448,624.52
  5. Step 5: Solve for x
    x = 693,448,624.52/40,891.92
  6. Step 6: Final answer
    x = 16,958.08

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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.