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Finding the Fourth Proportional to 56,409.87, 77,842.95 and 33,761.34

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Solution

The fourth proportional to 56,409.87, 77,842.95 and 33,761.34 is: 46,589.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,409.87 : 77,842.95 = 33,761.34 : x
  2. Step 2: Convert to fraction form
    56,409.87/77,842.95 = 33,761.34/x
  3. Step 3: Cross multiply
    56,409.87x = 77,842.95 × 33,761.34
  4. Step 4: Simplify right side
    56,409.87x = 2,628,082,301.55
  5. Step 5: Solve for x
    x = 2,628,082,301.55/56,409.87
  6. Step 6: Final answer
    x = 46,589.05

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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.