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Finding the Fourth Proportional to 5,133.76, 7,700.64 and 2,940.98

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Solution

The fourth proportional to 5,133.76, 7,700.64 and 2,940.98 is: 4,411.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,133.76 : 7,700.64 = 2,940.98 : x
  2. Step 2: Convert to fraction form
    5,133.76/7,700.64 = 2,940.98/x
  3. Step 3: Cross multiply
    5,133.76x = 7,700.64 × 2,940.98
  4. Step 4: Simplify right side
    5,133.76x = 22,647,428.23
  5. Step 5: Solve for x
    x = 22,647,428.23/5,133.76
  6. Step 6: Final answer
    x = 4,411.47

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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.