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Finding the Fourth Proportional to 9,425.77, 13,009.92 and 5,449.38

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Solution

The fourth proportional to 9,425.77, 13,009.92 and 5,449.38 is: 7,521.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,425.77 : 13,009.92 = 5,449.38 : x
  2. Step 2: Convert to fraction form
    9,425.77/13,009.92 = 5,449.38/x
  3. Step 3: Cross multiply
    9,425.77x = 13,009.92 × 5,449.38
  4. Step 4: Simplify right side
    9,425.77x = 70,895,928.63
  5. Step 5: Solve for x
    x = 70,895,928.63/9,425.77
  6. Step 6: Final answer
    x = 7,521.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.