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Finding the Fourth Proportional to 55,651.84, 76,799.78 and 30,158.26

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Solution

The fourth proportional to 55,651.84, 76,799.78 and 30,158.26 is: 41,618.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,651.84 : 76,799.78 = 30,158.26 : x
  2. Step 2: Convert to fraction form
    55,651.84/76,799.78 = 30,158.26/x
  3. Step 3: Cross multiply
    55,651.84x = 76,799.78 × 30,158.26
  4. Step 4: Simplify right side
    55,651.84x = 2,316,147,733.18
  5. Step 5: Solve for x
    x = 2,316,147,733.18/55,651.84
  6. Step 6: Final answer
    x = 41,618.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.