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Finding the Fourth Proportional to 55,472.50, 83,208.75 and 18,536.50

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Solution

The fourth proportional to 55,472.50, 83,208.75 and 18,536.50 is: 27,804.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,472.50 : 83,208.75 = 18,536.50 : x
  2. Step 2: Convert to fraction form
    55,472.50/83,208.75 = 18,536.50/x
  3. Step 3: Cross multiply
    55,472.50x = 83,208.75 × 18,536.50
  4. Step 4: Simplify right side
    55,472.50x = 1,542,398,994.38
  5. Step 5: Solve for x
    x = 1,542,398,994.38/55,472.50
  6. Step 6: Final answer
    x = 27,804.75

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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.