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Finding the Fourth Proportional to 7,975.56, 11,002.64 and 7,335.87

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Solution

The fourth proportional to 7,975.56, 11,002.64 and 7,335.87 is: 10,120.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,975.56 : 11,002.64 = 7,335.87 : x
  2. Step 2: Convert to fraction form
    7,975.56/11,002.64 = 7,335.87/x
  3. Step 3: Cross multiply
    7,975.56x = 11,002.64 × 7,335.87
  4. Step 4: Simplify right side
    7,975.56x = 80,713,858.76
  5. Step 5: Solve for x
    x = 80,713,858.76/7,975.56
  6. Step 6: Final answer
    x = 10,120.14

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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.