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Finding the Fourth Proportional to 55,359.30, 83,025.45 and 15,912.30

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Solution

The fourth proportional to 55,359.30, 83,025.45 and 15,912.30 is: 23,864.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,359.30 : 83,025.45 = 15,912.30 : x
  2. Step 2: Convert to fraction form
    55,359.30/83,025.45 = 15,912.30/x
  3. Step 3: Cross multiply
    55,359.30x = 83,025.45 × 15,912.30
  4. Step 4: Simplify right side
    55,359.30x = 1,321,125,868.04
  5. Step 5: Solve for x
    x = 1,321,125,868.04/55,359.30
  6. Step 6: Final answer
    x = 23,864.57

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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.