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Finding the Fourth Proportional to 28,601.50, 42,908.73 and 10,133.50

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Solution

The fourth proportional to 28,601.50, 42,908.73 and 10,133.50 is: 15,202.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,601.50 : 42,908.73 = 10,133.50 : x
  2. Step 2: Convert to fraction form
    28,601.50/42,908.73 = 10,133.50/x
  3. Step 3: Cross multiply
    28,601.50x = 42,908.73 × 10,133.50
  4. Step 4: Simplify right side
    28,601.50x = 434,815,615.46
  5. Step 5: Solve for x
    x = 434,815,615.46/28,601.50
  6. Step 6: Final answer
    x = 15,202.55

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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.