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Finding the Fourth Proportional to 72,632.35, 108,981.38 and 37,075.30

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Solution

The fourth proportional to 72,632.35, 108,981.38 and 37,075.30 is: 55,629.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,632.35 : 108,981.38 = 37,075.30 : x
  2. Step 2: Convert to fraction form
    72,632.35/108,981.38 = 37,075.30/x
  3. Step 3: Cross multiply
    72,632.35x = 108,981.38 × 37,075.30
  4. Step 4: Simplify right side
    72,632.35x = 4,040,517,791.17
  5. Step 5: Solve for x
    x = 4,040,517,791.17/72,632.35
  6. Step 6: Final answer
    x = 55,629.73

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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.