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Finding the Fourth Proportional to 56,419.16, 77,855.72 and 33,770.65

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Solution

The fourth proportional to 56,419.16, 77,855.72 and 33,770.65 is: 46,601.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,419.16 : 77,855.72 = 33,770.65 : x
  2. Step 2: Convert to fraction form
    56,419.16/77,855.72 = 33,770.65/x
  3. Step 3: Cross multiply
    56,419.16x = 77,855.72 × 33,770.65
  4. Step 4: Simplify right side
    56,419.16x = 2,629,238,101.76
  5. Step 5: Solve for x
    x = 2,629,238,101.76/56,419.16
  6. Step 6: Final answer
    x = 46,601.87

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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.