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Finding the Fourth Proportional to 55,562.92, 76,597.12 and 39,619.72

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Solution

The fourth proportional to 55,562.92, 76,597.12 and 39,619.72 is: 54,618.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,562.92 : 76,597.12 = 39,619.72 : x
  2. Step 2: Convert to fraction form
    55,562.92/76,597.12 = 39,619.72/x
  3. Step 3: Cross multiply
    55,562.92x = 76,597.12 × 39,619.72
  4. Step 4: Simplify right side
    55,562.92x = 3,034,756,447.21
  5. Step 5: Solve for x
    x = 3,034,756,447.21/55,562.92
  6. Step 6: Final answer
    x = 54,618.38

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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.