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Finding the Fourth Proportional to 56,379.95, 77,750.64 and 33,715.28

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Solution

The fourth proportional to 56,379.95, 77,750.64 and 33,715.28 is: 46,494.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,379.95 : 77,750.64 = 33,715.28 : x
  2. Step 2: Convert to fraction form
    56,379.95/77,750.64 = 33,715.28/x
  3. Step 3: Cross multiply
    56,379.95x = 77,750.64 × 33,715.28
  4. Step 4: Simplify right side
    56,379.95x = 2,621,384,209.03
  5. Step 5: Solve for x
    x = 2,621,384,209.03/56,379.95
  6. Step 6: Final answer
    x = 46,494.98

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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.