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Finding the Fourth Proportional to 28,600.50, 42,907.23 and 10,132.50

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Solution

The fourth proportional to 28,600.50, 42,907.23 and 10,132.50 is: 15,201.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,600.50 : 42,907.23 = 10,132.50 : x
  2. Step 2: Convert to fraction form
    28,600.50/42,907.23 = 10,132.50/x
  3. Step 3: Cross multiply
    28,600.50x = 42,907.23 × 10,132.50
  4. Step 4: Simplify right side
    28,600.50x = 434,757,507.98
  5. Step 5: Solve for x
    x = 434,757,507.98/28,600.50
  6. Step 6: Final answer
    x = 15,201.05

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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.