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Finding the Fourth Proportional to 7,940.71, 10,959.61 and 4,583.06

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Solution

The fourth proportional to 7,940.71, 10,959.61 and 4,583.06 is: 6,325.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.71 : 10,959.61 = 4,583.06 : x
  2. Step 2: Convert to fraction form
    7,940.71/10,959.61 = 4,583.06/x
  3. Step 3: Cross multiply
    7,940.71x = 10,959.61 × 4,583.06
  4. Step 4: Simplify right side
    7,940.71x = 50,228,550.21
  5. Step 5: Solve for x
    x = 50,228,550.21/7,940.71
  6. Step 6: Final answer
    x = 6,325.45

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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.