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Finding the Fourth Proportional to 55,222.76, 82,709.52 and 25,578.32

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Solution

The fourth proportional to 55,222.76, 82,709.52 and 25,578.32 is: 38,309.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,222.76 : 82,709.52 = 25,578.32 : x
  2. Step 2: Convert to fraction form
    55,222.76/82,709.52 = 25,578.32/x
  3. Step 3: Cross multiply
    55,222.76x = 82,709.52 × 25,578.32
  4. Step 4: Simplify right side
    55,222.76x = 2,115,570,569.61
  5. Step 5: Solve for x
    x = 2,115,570,569.61/55,222.76
  6. Step 6: Final answer
    x = 38,309.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.