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Finding the Fourth Proportional to 7,955.11, 10,982.98 and 5,127.35

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Solution

The fourth proportional to 7,955.11, 10,982.98 and 5,127.35 is: 7,078.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,955.11 : 10,982.98 = 5,127.35 : x
  2. Step 2: Convert to fraction form
    7,955.11/10,982.98 = 5,127.35/x
  3. Step 3: Cross multiply
    7,955.11x = 10,982.98 × 5,127.35
  4. Step 4: Simplify right side
    7,955.11x = 56,313,616.37
  5. Step 5: Solve for x
    x = 56,313,616.37/7,955.11
  6. Step 6: Final answer
    x = 7,078.93

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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.