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Finding the Fourth Proportional to 28,548.37, 42,825.42 and 9,825.93

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Solution

The fourth proportional to 28,548.37, 42,825.42 and 9,825.93 is: 14,739.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,548.37 : 42,825.42 = 9,825.93 : x
  2. Step 2: Convert to fraction form
    28,548.37/42,825.42 = 9,825.93/x
  3. Step 3: Cross multiply
    28,548.37x = 42,825.42 × 9,825.93
  4. Step 4: Simplify right side
    28,548.37x = 420,799,620.39
  5. Step 5: Solve for x
    x = 420,799,620.39/28,548.37
  6. Step 6: Final answer
    x = 14,739.88

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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.