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Finding the Fourth Proportional to 55,359.10, 83,050.80 and 17,912.80

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Solution

The fourth proportional to 55,359.10, 83,050.80 and 17,912.80 is: 26,873.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,359.10 : 83,050.80 = 17,912.80 : x
  2. Step 2: Convert to fraction form
    55,359.10/83,050.80 = 17,912.80/x
  3. Step 3: Cross multiply
    55,359.10x = 83,050.80 × 17,912.80
  4. Step 4: Simplify right side
    55,359.10x = 1,487,672,370.24
  5. Step 5: Solve for x
    x = 1,487,672,370.24/55,359.10
  6. Step 6: Final answer
    x = 26,873.13

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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.